{"schema_version":"2","view":"grouped","data":[{"id":67658,"cve_ids":["CVE-2026-42772","CVE-2026-54873"],"payload":{"kind":"advisory","title":"openssl vulnerabilities","summary":"It was discovered that OpenSSL had an inefficient algorithm in its QUIC stream reassembly implementation. A remote attacker could possibly use this issue to cause OpenSSL to use excessive CPU resources, leading to a denial of service. (CVE-2026-42772) It was discovered that OpenSSL did not properly limit memory allocated for QUIC packet buffers. A remote attacker could possibly use this issue to cause OpenSSL to use excessive memory resources, leading to a denial of service. 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A remote attacker could possibly use this issue to cause OpenSSL to use excessive CPU resources, leading to a denial of service. (CVE-2026-42772) It was discovered that OpenSSL did not properly limit memory allocated for QUIC packet buffers. A remote attacker could possibly use this issue to cause OpenSSL to use excessive memory resources, leading to a denial of service. 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An attacker could possibly use this issue to cause OpenSSL to consume excessive memory, resulting in a denial of service. (CVE-2026-35189) It was discovered that OpenSSL incorrectly handled QUIC unvalidated amplification credit accounting. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-35191) It was discovered that OpenSSL incorrectly implemented scalar multiplication for non-NIST elliptic curves. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. (CVE-2026-54872) It was discovered that OpenSSL incorrectly implemented SM2 scalar multiplication on ARM64 and RISC-V architectures. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-54875) It was discovered that OpenSSL incorrectly handled SSL context switching during a TLS handshake. An attacker could possibly use this issue to cause an out-of-bounds read, resulting in a denial of service or obtaining sensitive information. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-72897) It was discovered that OpenSSL incorrectly enforced QUIC connection- level flow control for streams. An attacker could possibly use this issue to cause OpenSSL to consume excessive 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vulnerabilities","summary":"It was discovered that OpenSSL incorrectly handled certain certificate revocation list distribution point names. An attacker could possibly use this issue to cause OpenSSL to consume excessive memory, resulting in a denial of service. (CVE-2026-35189) It was discovered that OpenSSL incorrectly handled QUIC unvalidated amplification credit accounting. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-35191) It was discovered that OpenSSL incorrectly implemented scalar multiplication for non-NIST elliptic curves. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. (CVE-2026-54872) It was discovered that OpenSSL incorrectly implemented SM2 scalar multiplication on ARM64 and RISC-V architectures. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-54875) It was discovered that OpenSSL incorrectly handled SSL context switching during a TLS handshake. An attacker could possibly use this issue to cause an out-of-bounds read, resulting in a denial of service or obtaining sensitive information. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-72897) It was discovered that OpenSSL incorrectly enforced QUIC connection- level flow control for streams. An attacker could possibly use this issue to cause OpenSSL to consume excessive 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vulnerabilities","summary":"It was discovered that OpenSSL incorrectly handled certain certificate revocation list distribution point names. An attacker could possibly use this issue to cause OpenSSL to consume excessive memory, resulting in a denial of service. (CVE-2026-35189) It was discovered that OpenSSL incorrectly handled QUIC unvalidated amplification credit accounting. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-35191) It was discovered that OpenSSL incorrectly implemented scalar multiplication for non-NIST elliptic curves. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. (CVE-2026-54872) It was discovered that OpenSSL incorrectly implemented SM2 scalar multiplication on ARM64 and RISC-V architectures. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-54875) It was discovered that OpenSSL incorrectly handled SSL context switching during a TLS handshake. An attacker could possibly use this issue to cause an out-of-bounds read, resulting in a denial of service or obtaining sensitive information. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-72897) It was discovered that OpenSSL incorrectly enforced QUIC connection- level flow control for streams. An attacker could possibly use this issue to cause OpenSSL to consume excessive me","evidence":"osv:USN-8847-1","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.0.2-0ubuntu1.30","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"1.1.1l-1ubuntu1","evidence":"/affected/0/versions"},{"value":"3.0.0-1ubuntu1","evidence":"/affected/0/versions"},{"value":"3.0.1-0ubuntu1","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.1","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.2","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.4","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.5","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.6","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.7","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.8","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.9","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.10","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.12","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.13","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.14","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.15","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.16","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.17","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.18","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.19","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.20","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.21","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.23","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.25","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.26","evidence":"/affected/0/versions"},{"value":"3.0.2-0ubuntu1.29","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.0.13-0ubuntu3.16","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.0.10-1ubuntu2","evidence":"/affected/1/versions"},{"value":"3.0.10-1ubuntu2.1","evidence":"/affected/1/versions"},{"value":"3.0.10-1ubuntu3","evidence":"/affected/1/versions"},{"value":"3.0.10-1ubuntu4","evidence":"/affected/1/versions"},{"value":"3.0.13-0ubuntu2","evidence":"/affected/1/versions"},{"value":"3.0.13-0ubuntu3","evidence":"/affected/1/versions"},{"value":"3.0.13-0ubuntu3.1","evidence":"/affected/1/versions"},{"value":"3.0.13-0ubuntu3.2","evidence":"/affected/1/versions"},{"value":"3.0.13-0ubuntu3.3","evidence":"/affected/1/versions"},{"value":"3.0.13-0ubuntu3.4","evidence":"/affected/1/versions"},{"value":"3.0.13-0ubuntu3.5","evidence":"/affected/1/versions"},{"value":"3.0.13-0ubuntu3.6","evidence":"/affected/1/versions"},{"value":"3.0.13-0ubuntu3.7","evidence":"/affected/1/versions"},{"value":"3.0.13-0ubuntu3.9","evidence":"/affected/1/versions"},{"value":"3.0.13-0ubuntu3.11","evidence":"/affected/1/versions"},{"value":"3.0.13-0ubuntu3.12","evidence":"/affected/1/versions"},{"value":"3.0.13-0ubuntu3.15","evidence":"/affected/1/versions"}]},{"name":{"value":"openssl","evidence":"/affected/2/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.5-1ubuntu3.6","evidence":"/affected/2/ranges"}],"affected_versions":[{"value":"3.5.3-1ubuntu2","evidence":"/affected/2/versions"},{"value":"3.5.5-1ubuntu1","evidence":"/affected/2/versions"},{"value":"3.5.5-1ubuntu3","evidence":"/affected/2/versions"},{"value":"3.5.5-1ubuntu3.2","evidence":"/affected/2/versions"},{"value":"3.5.5-1ubuntu3.3","evidence":"/affected/2/versions"},{"value":"3.5.5-1ubuntu3.4","evidence":"/affected/2/versions"},{"value":"3.5.5-1ubuntu3.5","evidence":"/affected/2/versions"}]}],"severity":"unknown","structured":{"id":"USN-8847-1","aliases":["USN-8847-1"],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.2-0ubuntu1.30"}]}],"package":{"name":"openssl","purl":"pkg:deb/ubuntu/openssl?arch=source&distro=jammy","ecosystem":"Ubuntu:22.04:LTS"},"versions":["1.1.1l-1ubuntu1","3.0.0-1ubuntu1","3.0.1-0ubuntu1","3.0.2-0ubuntu1","3.0.2-0ubuntu1.1","3.0.2-0ubuntu1.2","3.0.2-0ubuntu1.4","3.0.2-0ubuntu1.5","3.0.2-0ubuntu1.6","3.0.2-0ubuntu1.7","3.0.2-0ubuntu1.8","3.0.2-0ubuntu1.9","3.0.2-0ubuntu1.10","3.0.2-0ubuntu1.12","3.0.2-0ubuntu1.13","3.0.2-0ubuntu1.14","3.0.2-0ubuntu1.15","3.0.2-0ubuntu1.16","3.0.2-0ubuntu1.17","3.0.2-0ubuntu1.18","3.0.2-0ubuntu1.19","3.0.2-0ubuntu1.20","3.0.2-0ubuntu1.21","3.0.2-0ubuntu1.23","3.0.2-0ubuntu1.25","3.0.2-0ubuntu1.26","3.0.2-0ubuntu1.29"],"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8847-1.json","cves_map":{"cves":[{"id":"CVE-2026-35189","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"low"}]},{"id":"CVE-2026-54872","severity":[{"type":"CVS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summary: When CMS password-based decryption (RFC 3211 / PWRI key unwrap) processes attacker-supplied CMS data, an attacker-chosen stream-mode KEK cipher can trigger a heap out-of-bounds read in kek_unwrap_key(). Impact summary: A heap buffer over-read may trigger a crash which leads to Denial of Service for an application if the input buffer ends at a memory page boundary and the following page is unmapped. There is no information disclosure as the over-read bytes are not revealed to the attacker. The key unwrapping function performs a check-byte test as specified in the RFC that reads 7 bytes from a heap allocation that is based on the wrapped key length from the message. There is a minimum length check based on the block length of the wrapping cipher. However the cipher is selected from an OID carried in the attacker's PWRI keyEncryptionAlgorithm with no requirement that the cipher be a block cipher. When an attacker selects a stream-mode cipher the guard will be ineffective and the allocated buffer containing the unwrapped key can be too small to fit the check-bytes specified in the RFC and a buffer over-read can happen. Applications calling CMS_decrypt() or CMS_decrypt_set1_password() (equivalently openssl cms -decrypt -pwri_password ...) on untrusted CMS data are vulnerable to this issue. No password knowledge is required: the over-read happens during the unwrap attempt before any authentication succeeds. The over-read is limited to a few bytes and is not written 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Impact summary: A heap buffer over-read may trigger a crash which leads to Denial of Service for an application if the input buffer ends at a memory page boundary and the following page is unmapped. There is no information disclosure as the over-read bytes are not revealed to the attacker. The key unwrapping function performs a check-byte test as specified in the RFC that reads 7 bytes from a heap allocation that is based on the wrapped key length from the message. There is a minimum length check based on the block length of the wrapping cipher. However the cipher is selected from an OID carried in the attacker's PWRI keyEncryptionAlgorithm with no requirement that the cipher be a block cipher. When an attacker selects a stream-mode cipher the guard will be ineffective and the allocated buffer containing the unwrapped key can be too small to fit the check-bytes specified in the RFC and a buffer over-read can happen. 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The over-read is limited to a few bytes and is not written 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decryption (RFC 3211 / PWRI key unwrap) processes attacker-supplied CMS data, an attacker-chosen stream-mode KEK cipher can trigger a heap out-of-bounds read in kek_unwrap_key(). Impact summary: A heap buffer over-read may trigger a crash which leads to Denial of Service for an application if the input buffer ends at a memory page boundary and the following page is unmapped. There is no information disclosure as the over-read bytes are not revealed to the attacker. The key unwrapping function performs a check-byte test as specified in the RFC that reads 7 bytes from a heap allocation that is based on the wrapped key length from the message. There is a minimum length check based on the block length of the wrapping cipher. However the cipher is selected from an OID carried in the attacker's PWRI keyEncryptionAlgorithm with no requirement that the cipher be a block cipher. When an attacker selects a stream-mode cipher the guard will be ineffective and the allocated buffer containing the unwrapped key can be too small to fit the check-bytes specified in the RFC and a buffer over-read can happen. Applications calling CMS_decrypt() or CMS_decrypt_set1_password() (equivalently openssl cms -decrypt -pwri_password ...) on untrusted CMS data are vulnerable to this issue. No password knowledge is required: the over-read happens during the unwrap attempt before any authentication succeeds. The over-read is limited to a few bytes and is not written 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decryption with an empty ciphertext can report success without verifying the supplied authentication tag when the operation is finalized by calling the EVP_Cipher() function. Impact summary: Applications calling EVP_Cipher() on an empty ciphertext and expecting the call to check the AEAD tag may accept forged messages. CWE: CWE-354 (Improper Validation of Integrity Check Value) Description: The EVP_Cipher() API call for AEAD ciphers behaves like a one shot encryption and decryption call. It also verifies the AEAD tag after the decryption operation. However for AES-OCB and ChaCha20-Poly1305 ciphers it skipped the AEAD tag verification when an empty ciphertext was passed to the function. The callers of this function might believe that a successful return indicates a valid AEAD tag for these ciphers, even when that has not truly been validated in this case. FIPS impact: no The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this CVE as the affected algorithms are not FIPS approved and thus not implemented in the FIPS module.","evidence":"osv:DEBIAN-CVE-2026-75803","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.0.22-1~deb12u1","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.0.10-1","evidence":"/affected/0/versions"},{"value":"3.0.10-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.12-1","evidence":"/affected/0/versions"},{"value":"3.0.12-2","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.15-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.16-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u3","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.20-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.20-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.9-1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.7-1~deb13u2","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/1/versions"}]},{"name":{"value":"openssl","evidence":"/affected/2/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.4-1","evidence":"/affected/2/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/2/versions"},{"value":"3.5.2-1","evidence":"/affected/2/versions"},{"value":"3.5.3-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.5-1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/2/versions"},{"value":"3.6.0-1","evidence":"/affected/2/versions"},{"value":"3.6.0-2","evidence":"/affected/2/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/2/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-2","evidence":"/affected/2/versions"},{"value":"3.6.1-3","evidence":"/affected/2/versions"},{"value":"3.6.2-1","evidence":"/affected/2/versions"},{"value":"3.6.3-1","evidence":"/affected/2/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-75803","aliases":["DEBIAN-CVE-2026-75803"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.22-1~deb12u1"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=bookworm","ecosystem":"Debian:12"},"versions":["3.0.10-1","3.0.10-1~deb12u1","3.0.11-1","3.0.11-1~deb12u1","3.0.11-1~deb12u2","3.0.12-1","3.0.12-2","3.0.13-1~deb12u1","3.0.13-1~deb12u2","3.0.14-1~deb12u1","3.0.14-1~deb12u2","3.0.15-1~deb12u1","3.0.16-1~deb12u1","3.0.17-1~deb12u1","3.0.17-1~deb12u2","3.0.17-1~deb12u3","3.0.18-1~deb12u1","3.0.18-1~deb12u2","3.0.19-1~deb12u1","3.0.19-1~deb12u2","3.0.20-1~deb12u1","3.0.20-1~deb12u2","3.0.9-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-o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assigned"}}],"modified":"2026-10-01T03:03:34.474194253Z","provider":"osv","references":["https://security-tracker.debian.org/tracker/CVE-2026-75803"]},"related_cves":[],"security_relevant":true,"severity_evidence":null},"group_id":"advisory:6b70731e-c710-49ec-bfaa-b8ba019c103d","priority":{"reasons":["unrated_security_fix"],"severity":"unknown","linked_cves":[],"fix_available":true,"known_exploited":false,"publisher_severity":"unknown"},"revision":1,"source_id":"core-osv","source_url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-75803","advisory_id":"6b70731e-c710-49ec-bfaa-b8ba019c103d","event_types":["advisory"],"published_at":"2026-10-25T17:43:19.005523+00:00","technologies":["core-osv","openssl"],"context_update":false,"extraction_method":"structured","source_published_at":"2026-08-25T13:19:29.57+00:00","detail_url":"/advisories/advisory%3A6b70731e-c710-49ec-bfaa-b8ba019c103d","group":{"id":"advisory:6b70731e-c710-49ec-bfaa-b8ba019c103d","revision":1,"primary_event_id":58186,"change":"published","superseded_by":[],"changed":{"id":58186,"cve_ids":[],"payload":{"kind":"advisory","title":"DEBIAN-CVE-2026-75803","summary":"Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty ciphertext can report success without verifying the supplied authentication tag when the operation is finalized by calling the EVP_Cipher() function. Impact summary: Applications calling EVP_Cipher() on an empty ciphertext and expecting the call to check the AEAD tag may accept forged messages. CWE: CWE-354 (Improper Validation of Integrity Check Value) Description: The EVP_Cipher() API call for AEAD ciphers behaves like a one shot encryption and decryption call. It also verifies the AEAD tag after the decryption operation. However for AES-OCB and ChaCha20-Poly1305 ciphers it skipped the AEAD tag verification when an empty ciphertext was passed to the function. The callers of this function might believe that a successful return indicates a valid AEAD tag for these ciphers, even when that has not truly been validated in this case. FIPS impact: no The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this CVE as the affected algorithms are not FIPS approved and thus not implemented in the FIPS module.","evidence":"osv:DEBIAN-CVE-2026-75803","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.0.22-1~deb12u1","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.0.10-1","evidence":"/affected/0/versions"},{"value":"3.0.10-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.12-1","evidence":"/affected/0/versions"},{"value":"3.0.12-2","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.15-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.16-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u3","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.20-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.20-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.9-1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.7-1~deb13u2","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/1/versions"}]},{"name":{"value":"openssl","evidence":"/affected/2/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.4-1","evidence":"/affected/2/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/2/versions"},{"value":"3.5.2-1","evidence":"/affected/2/versions"},{"value":"3.5.3-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.5-1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/2/versions"},{"value":"3.6.0-1","evidence":"/affected/2/versions"},{"value":"3.6.0-2","evidence":"/affected/2/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/2/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-2","evidence":"/affected/2/versions"},{"value":"3.6.1-3","evidence":"/affected/2/versions"},{"value":"3.6.2-1","evidence":"/affected/2/versions"},{"value":"3.6.3-1","evidence":"/affected/2/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-75803","aliases":["DEBIAN-CVE-2026-75803"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.22-1~deb12u1"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=bookworm","ecosystem":"Debian:12"},"versions":["3.0.10-1","3.0.10-1~deb12u1","3.0.11-1","3.0.11-1~deb12u1","3.0.11-1~deb12u2","3.0.12-1","3.0.12-2","3.0.13-1~deb12u1","3.0.13-1~deb12u2","3.0.14-1~deb12u1","3.0.14-1~deb12u2","3.0.15-1~deb12u1","3.0.16-1~deb12u1","3.0.17-1~deb12u1","3.0.17-1~deb12u2","3.0.17-1~deb12u3","3.0.18-1~deb12u1","3.0.18-1~deb12u2","3.0.19-1~deb12u1","3.0.19-1~deb12u2","3.0.20-1~deb12u1","3.0.20-1~deb12u2","3.0.9-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-o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assigned"}}],"modified":"2026-10-01T03:03:34.474194253Z","provider":"osv","references":["https://security-tracker.debian.org/tracker/CVE-2026-75803"]},"related_cves":[],"security_relevant":true,"severity_evidence":null},"group_id":"advisory:6b70731e-c710-49ec-bfaa-b8ba019c103d","priority":{"reasons":["unrated_security_fix"],"severity":"unknown","linked_cves":[],"fix_available":true,"known_exploited":false,"publisher_severity":"unknown"},"revision":1,"source_id":"core-osv","source_url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-75803","advisory_id":"6b70731e-c710-49ec-bfaa-b8ba019c103d","event_types":["advisory"],"published_at":"2026-10-25T17:43:19.005523+00:00","technologies":["core-osv","openssl"],"context_update":false,"extraction_method":"structured","source_published_at":"2026-08-25T13:19:29.57+00:00","detail_url":"/events/58186"},"members":[{"id":58186,"cve_ids":[],"payload":{"kind":"advisory","title":"DEBIAN-CVE-2026-75803","summary":"Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty ciphertext can report success without verifying the supplied authentication tag when the operation is finalized by calling the EVP_Cipher() function. Impact summary: Applications calling EVP_Cipher() on an empty ciphertext and expecting the call to check the AEAD tag may accept forged messages. CWE: CWE-354 (Improper Validation of Integrity Check Value) Description: The EVP_Cipher() API call for AEAD ciphers behaves like a one shot encryption and decryption call. It also verifies the AEAD tag after the decryption operation. However for AES-OCB and ChaCha20-Poly1305 ciphers it skipped the AEAD tag verification when an empty ciphertext was passed to the function. The callers of this function might believe that a successful return indicates a valid AEAD tag for these ciphers, even when that has not truly been validated in this case. FIPS impact: no The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this CVE as the affected algorithms are not FIPS approved and thus not implemented in the FIPS module.","evidence":"osv:DEBIAN-CVE-2026-75803","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.0.22-1~deb12u1","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.0.10-1","evidence":"/affected/0/versions"},{"value":"3.0.10-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.12-1","evidence":"/affected/0/versions"},{"value":"3.0.12-2","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.15-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.16-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u3","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.20-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.20-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.9-1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.7-1~deb13u2","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/1/versions"}]},{"name":{"value":"openssl","evidence":"/affected/2/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.4-1","evidence":"/affected/2/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/2/versions"},{"value":"3.5.2-1","evidence":"/affected/2/versions"},{"value":"3.5.3-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.5-1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/2/versions"},{"value":"3.6.0-1","evidence":"/affected/2/versions"},{"value":"3.6.0-2","evidence":"/affected/2/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/2/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-2","evidence":"/affected/2/versions"},{"value":"3.6.1-3","evidence":"/affected/2/versions"},{"value":"3.6.2-1","evidence":"/affected/2/versions"},{"value":"3.6.3-1","evidence":"/affected/2/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-75803","aliases":["DEBIAN-CVE-2026-75803"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.22-1~deb12u1"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=bookworm","ecosystem":"Debian:12"},"versions":["3.0.10-1","3.0.10-1~deb12u1","3.0.11-1","3.0.11-1~deb12u1","3.0.11-1~deb12u2","3.0.12-1","3.0.12-2","3.0.13-1~deb12u1","3.0.13-1~deb12u2","3.0.14-1~deb12u1","3.0.14-1~deb12u2","3.0.15-1~deb12u1","3.0.16-1~deb12u1","3.0.17-1~deb12u1","3.0.17-1~deb12u2","3.0.17-1~deb12u3","3.0.18-1~deb12u1","3.0.18-1~deb12u2","3.0.19-1~deb12u1","3.0.19-1~deb12u2","3.0.20-1~deb12u1","3.0.20-1~deb12u2","3.0.9-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-o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assigned"}},{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.4-1"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=forky","ecosystem":"Debian:14"},"versions":["3.5.1-1","3.5.2-1","3.5.3-1","3.5.4-1","3.5.4-1~deb13u1","3.5.4-1~deb13u2","3.5.5-1","3.5.5-1~deb13u1","3.5.5-1~deb13u2","3.5.6-1~deb13u1","3.5.6-1~deb13u2","3.5.7-1~deb13u1","3.5.7-1~deb13u2","3.5.7-1~deb13u3","3.6.0-1","3.6.0-2","3.6.0~~alpha1-1","3.6.0~~beta1-1","3.6.1-1","3.6.1-2","3.6.1-3","3.6.2-1","3.6.3-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-75803.json"},"ecosystem_specific":{"urgency":"not yet assigned"}}],"modified":"2026-10-01T03:03:34.474194253Z","provider":"osv","references":["https://security-tracker.debian.org/tracker/CVE-2026-75803"]},"related_cves":[],"security_relevant":true,"severity_evidence":null},"group_id":"advisory:6b70731e-c710-49ec-bfaa-b8ba019c103d","priority":{"reasons":["unrated_security_fix"],"severity":"unknown","linked_cves":[],"fix_available":true,"known_exploited":false,"publisher_severity":"unknown"},"revision":1,"source_id":"core-osv","source_url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-75803","advisory_id":"6b70731e-c710-49ec-bfaa-b8ba019c103d","event_types":["advisory"],"published_at":"2026-10-25T17:43:19.005523+00:00","technologies":["core-osv","openssl"],"context_update":false,"extraction_method":"structured","source_published_at":"2026-08-25T13:19:29.57+00:00","detail_url":"/events/58186"}]}},{"id":58877,"cve_ids":[],"payload":{"kind":"advisory","title":"DEBIAN-CVE-2026-63076","summary":"Issue summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg parameter was not NULL and not its ASN.1 type, before treating it as a PBMParameter. A crafted message can contain a parameter of a different type, which is then dereferenced as an invalid pointer. Impact summary: A remote, unauthenticated attacker can crash an application acting as a CMP server that accepts PBM-protected messages, or a CMP client talking to a malicious or intercepted CMP server, resulting in a Denial of Service. CWE: CWE-476: NULL Pointer Dereference Description: When verifying the password-based MAC protection of a CMP message, OpenSSL library reads the protectionAlg algorithm parameter with X509_ALGOR_get0(), which returns both the parameter type and its value pointer. The value is then cast to an ASN1_STRING and treated as the expected PBMParameter after only checking that pointer is not NULL. The parameter type returned by X509_ALGOR_get0() was never consulted. This happens during protection verification, before any MAC is computed, so no knowledge of the PBM shared secret is required; the only precondition is that PBM verification is reachable. On the server side this is reached from OSSL_CMP_SRV_process_request() for any application that stands up a CMP server accepting PBM-protected messages, and on the client side from CMP response validation against a malicious or on-path (MITM) server. The reliable consequence is a denial of service; there is no 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an-cve-osv/DEBIAN-CVE-2026-63076.json"},"ecosystem_specific":{"urgency":"not 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summary: OpenSSL CMP password based protection verification only checks whether the protectionAlg parameter was not NULL and not its ASN.1 type, before treating it as a PBMParameter. A crafted message can contain a parameter of a different type, which is then dereferenced as an invalid pointer. Impact summary: A remote, unauthenticated attacker can crash an application acting as a CMP server that accepts PBM-protected messages, or a CMP client talking to a malicious or intercepted CMP server, resulting in a Denial of Service. CWE: CWE-476: NULL Pointer Dereference Description: When verifying the password-based MAC protection of a CMP message, OpenSSL library reads the protectionAlg algorithm parameter with X509_ALGOR_get0(), which returns both the parameter type and its value pointer. The value is then cast to an ASN1_STRING and treated as the expected PBMParameter after only checking that pointer is not NULL. The parameter type returned by X509_ALGOR_get0() was never consulted. This happens during protection verification, before any MAC is computed, so no knowledge of the PBM shared secret is required; the only precondition is that PBM verification is reachable. On the server side this is reached from OSSL_CMP_SRV_process_request() for any application that stands up a CMP server accepting PBM-protected messages, and on the client side from CMP response validation against a malicious or on-path (MITM) server. The reliable consequence is a denial of service; there is no 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an-cve-osv/DEBIAN-CVE-2026-63076.json"},"ecosystem_specific":{"urgency":"not 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based protection verification only checks whether the protectionAlg parameter was not NULL and not its ASN.1 type, before treating it as a PBMParameter. A crafted message can contain a parameter of a different type, which is then dereferenced as an invalid pointer. Impact summary: A remote, unauthenticated attacker can crash an application acting as a CMP server that accepts PBM-protected messages, or a CMP client talking to a malicious or intercepted CMP server, resulting in a Denial of Service. CWE: CWE-476: NULL Pointer Dereference Description: When verifying the password-based MAC protection of a CMP message, OpenSSL library reads the protectionAlg algorithm parameter with X509_ALGOR_get0(), which returns both the parameter type and its value pointer. The value is then cast to an ASN1_STRING and treated as the expected PBMParameter after only checking that pointer is not NULL. The parameter type returned by X509_ALGOR_get0() was never consulted. This happens during protection verification, before any MAC is computed, so no knowledge of the PBM shared secret is required; the only precondition is that PBM verification is reachable. On the server side this is reached from OSSL_CMP_SRV_process_request() for any application that stands up a CMP server accepting PBM-protected messages, and on the client side from CMP response validation against a malicious or on-path (MITM) server. The reliable consequence is a denial of service; there is no 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Management Protocol (CMP) caches additional certificates (extraCerts) sent in a CMP message, but never expunges them (for instance if they are invalid). If a server reuses an OSSL_CMP_CTX frequently, this cache of extraCerts may grow unboundedly, and a malicious client may flood a CMP server with requests driving this growth. Impact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX for the lifetime of a server process may observe unbounded memory growth in the event a malicious client repeatedly sends requests containing unique extra certificates, which may lead to OOM conditions. CWE: CWE-770: Allocation of Resources Without Limits or Throttling Description: If a remote user sends CMP messages to a server with a list of extraCerts and the message is rejected, the extraCerts from the message remains in the server contexts untrusted certificate stack. This exposes servers with long lived ctx objects to Denial of Service attacks in which an attacker sends messages intending to be rejected with a large list of additional certificates repeatedly, forcing the server to store them indefinitely. The issue was fixed by removing the added extra certs if the message is rejected, using the same method as when the context is configured to not do caching at all. FIPS impact: no As the CMP code lives outside the FIPS module boundary, no FIPS modules are affected by this 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summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificates (extraCerts) sent in a CMP message, but never expunges them (for instance if they are invalid). If a server reuses an OSSL_CMP_CTX frequently, this cache of extraCerts may grow unboundedly, and a malicious client may flood a CMP server with requests driving this growth. Impact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX for the lifetime of a server process may observe unbounded memory growth in the event a malicious client repeatedly sends requests containing unique extra certificates, which may lead to OOM conditions. CWE: CWE-770: Allocation of Resources Without Limits or Throttling Description: If a remote user sends CMP messages to a server with a list of extraCerts and the message is rejected, the extraCerts from the message remains in the server contexts untrusted certificate stack. This exposes servers with long lived ctx objects to Denial of Service attacks in which an attacker sends messages intending to be rejected with a large list of additional certificates repeatedly, forcing the server to store them indefinitely. The issue was fixed by removing the added extra certs if the message is rejected, using the same method as when the context is configured to not do caching at all. FIPS impact: no As the CMP code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE.","evidence":"osv:DEBIAN-CVE-2026-63074","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.0.22-1~deb12u1","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.0.10-1","evidence":"/affected/0/versions"},{"value":"3.0.10-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.12-1","evidence":"/affected/0/versions"},{"value":"3.0.12-2","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.15-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.16-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u3","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.20-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.20-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.9-1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.7-1~deb13u2","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/1/versions"}]},{"name":{"value":"openssl","evidence":"/affected/2/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.4-1","evidence":"/affected/2/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/2/versions"},{"value":"3.5.2-1","evidence":"/affected/2/versions"},{"value":"3.5.3-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.5-1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/2/versions"},{"value":"3.6.0-1","evidence":"/affected/2/versions"},{"value":"3.6.0-2","evidence":"/affected/2/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/2/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-2","evidence":"/affected/2/versions"},{"value":"3.6.1-3","evidence":"/affected/2/versions"},{"value":"3.6.2-1","evidence":"/affected/2/versions"},{"value":"3.6.3-1","evidence":"/affected/2/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-63074","aliases":["DEBIAN-CVE-2026-63074"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.22-1~deb12u1"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=bookworm","ecosystem":"Debian:12"},"versions":["3.0.10-1","3.0.10-1~deb12u1","3.0.11-1","3.0.11-1~deb12u1","3.0.11-1~deb12u2","3.0.12-1","3.0.12-2","3.0.13-1~deb12u1","3.0.13-1~deb12u2","3.0.14-1~deb12u1","3.0.14-1~deb12u2","3.0.15-1~deb12u1","3.0.16-1~deb12u1","3.0.17-1~deb12u1","3.0.17-1~deb12u2","3.0.17-1~deb12u3","3.0.18-1~deb12u1","3.0.18-1~deb12u2","3.0.19-1~deb12u1","3.0.19-1~deb12u2","3.0.20-1~deb12u1","3.0.20-1~deb12u2","3.0.9-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/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Management Protocol (CMP) caches additional certificates (extraCerts) sent in a CMP message, but never expunges them (for instance if they are invalid). If a server reuses an OSSL_CMP_CTX frequently, this cache of extraCerts may grow unboundedly, and a malicious client may flood a CMP server with requests driving this growth. Impact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX for the lifetime of a server process may observe unbounded memory growth in the event a malicious client repeatedly sends requests containing unique extra certificates, which may lead to OOM conditions. CWE: CWE-770: Allocation of Resources Without Limits or Throttling Description: If a remote user sends CMP messages to a server with a list of extraCerts and the message is rejected, the extraCerts from the message remains in the server contexts untrusted certificate stack. This exposes servers with long lived ctx objects to Denial of Service attacks in which an attacker sends messages intending to be rejected with a large list of additional certificates repeatedly, forcing the server to store them indefinitely. The issue was fixed by removing the added extra certs if the message is rejected, using the same method as when the context is configured to not do caching at all. FIPS impact: no As the CMP code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE.","evidence":"osv:DEBIAN-CVE-2026-63074","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.0.22-1~deb12u1","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.0.10-1","evidence":"/affected/0/versions"},{"value":"3.0.10-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.12-1","evidence":"/affected/0/versions"},{"value":"3.0.12-2","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.15-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.16-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u3","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.20-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.20-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.9-1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.7-1~deb13u2","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/1/versions"}]},{"name":{"value":"openssl","evidence":"/affected/2/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.4-1","evidence":"/affected/2/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/2/versions"},{"value":"3.5.2-1","evidence":"/affected/2/versions"},{"value":"3.5.3-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.5-1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/2/versions"},{"value":"3.6.0-1","evidence":"/affected/2/versions"},{"value":"3.6.0-2","evidence":"/affected/2/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/2/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-2","evidence":"/affected/2/versions"},{"value":"3.6.1-3","evidence":"/affected/2/versions"},{"value":"3.6.2-1","evidence":"/affected/2/versions"},{"value":"3.6.3-1","evidence":"/affected/2/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-63074","aliases":["DEBIAN-CVE-2026-63074"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.22-1~deb12u1"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=bookworm","ecosystem":"Debian:12"},"versions":["3.0.10-1","3.0.10-1~deb12u1","3.0.11-1","3.0.11-1~deb12u1","3.0.11-1~deb12u2","3.0.12-1","3.0.12-2","3.0.13-1~deb12u1","3.0.13-1~deb12u2","3.0.14-1~deb12u1","3.0.14-1~deb12u2","3.0.15-1~deb12u1","3.0.16-1~deb12u1","3.0.17-1~deb12u1","3.0.17-1~deb12u2","3.0.17-1~deb12u3","3.0.18-1~deb12u1","3.0.18-1~deb12u2","3.0.19-1~deb12u1","3.0.19-1~deb12u2","3.0.20-1~deb12u1","3.0.20-1~deb12u2","3.0.9-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/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key-unwrap output buffer based on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive can write and cleanse more bytes than that query reports, causing an 8-byte out-of-bounds heap write. Impact summary: An attacker who supplies a crafted CMS message can trigger a deterministic 8-byte out-of-bounds heap write when the victim decrypts it with CMS_decrypt(), corrupting the heap and typically resulting in a Denial of Service. CWE: CWE-787: Out-of-bounds Write Description: The key-wrap OID is potentially attacker-controlled on the wire. CMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers. An attacker can take a legitimate message and change a single OID byte to select the padded variant while leaving the message otherwise valid. Since the unwrap key is derived from the recipient's private operation (ECDH key agreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot pass, and the decryption fails with integrity failure. The write is a fixed-size (8-byte), fixed-value (zero) heap overflow immediately past the allocation, requires no special configuration, and is reachable from the public CMS_decrypt() function. The consequence is a heap corruption leading to a Denial of Service. The fix in the CMS code sizes the unwrap output buffer for the worst case so a failed unwrap cannot write past the allocation. FIPS impact: no As the CMS code lives outside the FIPS module boundary, no 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summary: OpenSSL CMS decryption sizes the key-unwrap output buffer based on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive can write and cleanse more bytes than that query reports, causing an 8-byte out-of-bounds heap write. Impact summary: An attacker who supplies a crafted CMS message can trigger a deterministic 8-byte out-of-bounds heap write when the victim decrypts it with CMS_decrypt(), corrupting the heap and typically resulting in a Denial of Service. CWE: CWE-787: Out-of-bounds Write Description: The key-wrap OID is potentially attacker-controlled on the wire. CMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers. An attacker can take a legitimate message and change a single OID byte to select the padded variant while leaving the message otherwise valid. Since the unwrap key is derived from the recipient's private operation (ECDH key agreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot pass, and the decryption fails with integrity failure. The write is a fixed-size (8-byte), fixed-value (zero) heap overflow immediately past the allocation, requires no special configuration, and is reachable from the public CMS_decrypt() function. The consequence is a heap corruption leading to a Denial of Service. The fix in the CMS code sizes the unwrap output buffer for the worst case so a failed unwrap cannot write past the allocation. FIPS impact: no As the CMS code lives outside the FIPS module boundary, no 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sizes the key-unwrap output buffer based on querying the unwrapped key size, but the AES-WRAP-PAD unwrap primitive can write and cleanse more bytes than that query reports, causing an 8-byte out-of-bounds heap write. Impact summary: An attacker who supplies a crafted CMS message can trigger a deterministic 8-byte out-of-bounds heap write when the victim decrypts it with CMS_decrypt(), corrupting the heap and typically resulting in a Denial of Service. CWE: CWE-787: Out-of-bounds Write Description: The key-wrap OID is potentially attacker-controlled on the wire. CMS unwrapping allows both id-aesNNN-wrap-pad and id-aesNNN-wrap ciphers. An attacker can take a legitimate message and change a single OID byte to select the padded variant while leaving the message otherwise valid. Since the unwrap key is derived from the recipient's private operation (ECDH key agreement or ML-KEM decapsulation), the RFC 5649 integrity check cannot pass, and the decryption fails with integrity failure. The write is a fixed-size (8-byte), fixed-value (zero) heap overflow immediately past the allocation, requires no special configuration, and is reachable from the public CMS_decrypt() function. The consequence is a heap corruption leading to a Denial of Service. The fix in the CMS code sizes the unwrap output buffer for the worst case so a failed unwrap cannot write past the allocation. FIPS impact: no As the CMS code lives outside the FIPS module boundary, no 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Impact summary: A remote peer that can complete a QUIC handshake can cause connection-scoped memory growth which may lead to Denial of Service through memory exhaustion, especially with sustained traffic or many concurrent QUIC connections. CWE: CWE-770: Allocation of Resources Without Limits or Throttling Description: When the OpenSSL QUIC stack sends an ACK-only packet, there is no requirement by the QUIC protocol that the peer will acknowledge that ACK-only packet (i.e. it is itself not ack-eliciting). However, the OpenSSL implementation stores the metadata about the ACK frames regardless. In and of itself that's ok, but if a malicious peer establishes a connection, and then drives the connection such that ACK-only packets are forced from the OpenSSL implementation peer (i.e., by sending numerous PING frames), and then withholding any subsequent acks for ack-eliciting data, like legitimate data, said malicious peer can force inappropriate memory growth on the OpenSSL peer, potentially leading to a Denial of Service. The fix is to ensure that we account for the transmission of the ACK-only packet in the packet histories high and low watermark without actually storing the ACK-only packet metadata itself. FIPS impact: no The OpenSSL FIPS 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QUIC traffic from a peer that repeatedly sends ack-eliciting packets while not acknowledging ACK-only responses, the QUIC stack can retain ACK-only packet metadata for the lifetime of the connection. Impact summary: A remote peer that can complete a QUIC handshake can cause connection-scoped memory growth which may lead to Denial of Service through memory exhaustion, especially with sustained traffic or many concurrent QUIC connections. CWE: CWE-770: Allocation of Resources Without Limits or Throttling Description: When the OpenSSL QUIC stack sends an ACK-only packet, there is no requirement by the QUIC protocol that the peer will acknowledge that ACK-only packet (i.e. it is itself not ack-eliciting). However, the OpenSSL implementation stores the metadata about the ACK frames regardless. In and of itself that's ok, but if a malicious peer establishes a connection, and then drives the connection such that ACK-only packets are forced from the OpenSSL implementation peer (i.e., by sending numerous PING frames), and then withholding any subsequent acks for ack-eliciting data, like legitimate data, said malicious peer can force inappropriate memory growth on the OpenSSL peer, potentially leading to a Denial of Service. The fix is to ensure that we account for the transmission of the ACK-only packet in the packet histories high and low watermark without actually storing the ACK-only packet metadata itself. FIPS impact: no The OpenSSL FIPS modu","evidence":"osv:DEBIAN-CVE-2026-63075","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.7-1~deb13u2","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/0/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.2-1","evidence":"/affected/0/versions"},{"value":"3.5.3-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.5-1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.4-1","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/1/versions"},{"value":"3.6.0-1","evidence":"/affected/1/versions"},{"value":"3.6.0-2","evidence":"/affected/1/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/1/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/1/versions"},{"value":"3.6.1-1","evidence":"/affected/1/versions"},{"value":"3.6.1-2","evidence":"/affected/1/versions"},{"value":"3.6.1-3","evidence":"/affected/1/versions"},{"value":"3.6.2-1","evidence":"/affected/1/versions"},{"value":"3.6.3-1","evidence":"/affected/1/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-63075","aliases":["DEBIAN-CVE-2026-63075"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.7-1~deb13u2"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=trixie","ecosystem":"Debian:13"},"versions":["3.5.1-1","3.5.1-1+deb13u1","3.5.2-1","3.5.3-1","3.5.4-1","3.5.4-1~deb13u1","3.5.4-1~deb13u2","3.5.5-1","3.5.5-1~deb13u1","3.5.5-1~deb13u2","3.5.6-1~deb13u1","3.5.6-1~deb13u2","3.5.7-1~deb13u1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63075.json"},"ecosystem_specific":{"urgency":"not 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AES-OCB context through the public EVP_Cipher() one-shot interface, the application-supplied initialisation vector (IV) is silently discarded. Impact summary: Every message encrypted under the same key uses the same effective nonce regardless of the IV supplied by the caller, resulting in (key, nonce) reuse and loss of confidentiality. If the same code path is used to compute the authentication tag, the tag depends only on the (key, IV) pair and not on the plaintext or ciphertext, allowing universal forgery of arbitrary ciphertext from a single captured message. OpenSSL provides two ways to drive a cipher: the documented streaming interface (EVP_CipherUpdate / EVP_CipherFinal_ex) and a lower-level one-shot, EVP_Cipher(), whose documentation explicitly recommends against use by applications in favour of EVP_CipherUpdate() and EVP_CipherFinal_ex(). The OCB provider's streaming handler flushes the application-supplied IV into the OCB context before processing data; the one-shot handler did not. Every call to EVP_Cipher() on an AES-OCB context therefore ran with the all-zero key-derived offset state left by cipher initialisation, regardless of the caller's IV. If EVP_EncryptFinal_ex() is subsequently used to obtain the authentication tag, the deferred IV setup runs at that point and clears the running checksum that should have been accumulated over the plaintext. The resulting tag is a function of (key, IV) only and verifies against 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summary: When an application drives an AES-OCB context through the public EVP_Cipher() one-shot interface, the application-supplied initialisation vector (IV) is silently discarded. Impact summary: Every message encrypted under the same key uses the same effective nonce regardless of the IV supplied by the caller, resulting in (key, nonce) reuse and loss of confidentiality. If the same code path is used to compute the authentication tag, the tag depends only on the (key, IV) pair and not on the plaintext or ciphertext, allowing universal forgery of arbitrary ciphertext from a single captured message. OpenSSL provides two ways to drive a cipher: the documented streaming interface (EVP_CipherUpdate / EVP_CipherFinal_ex) and a lower-level one-shot, EVP_Cipher(), whose documentation explicitly recommends against use by applications in favour of EVP_CipherUpdate() and EVP_CipherFinal_ex(). The OCB provider's streaming handler flushes the application-supplied IV into the OCB context before processing data; the one-shot handler did not. Every call to EVP_Cipher() on an AES-OCB context therefore ran with the all-zero key-derived offset state left by cipher initialisation, regardless of the caller's IV. If EVP_EncryptFinal_ex() is subsequently used to obtain the authentication tag, the deferred IV setup runs at that point and clears the running checksum that should have been accumulated over the plaintext. The resulting tag is a function of (key, IV) only and verifies against 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drives an AES-OCB context through the public EVP_Cipher() one-shot interface, the application-supplied initialisation vector (IV) is silently discarded. Impact summary: Every message encrypted under the same key uses the same effective nonce regardless of the IV supplied by the caller, resulting in (key, nonce) reuse and loss of confidentiality. If the same code path is used to compute the authentication tag, the tag depends only on the (key, IV) pair and not on the plaintext or ciphertext, allowing universal forgery of arbitrary ciphertext from a single captured message. OpenSSL provides two ways to drive a cipher: the documented streaming interface (EVP_CipherUpdate / EVP_CipherFinal_ex) and a lower-level one-shot, EVP_Cipher(), whose documentation explicitly recommends against use by applications in favour of EVP_CipherUpdate() and EVP_CipherFinal_ex(). The OCB provider's streaming handler flushes the application-supplied IV into the OCB context before processing data; the one-shot handler did not. Every call to EVP_Cipher() on an AES-OCB context therefore ran with the all-zero key-derived offset state left by cipher initialisation, regardless of the caller's IV. If EVP_EncryptFinal_ex() is subsequently used to obtain the authentication tag, the deferred IV setup runs at that point and clears the running checksum that should have been accumulated over the plaintext. The resulting tag is a function of (key, IV) only and verifies against an","evidence":"osv:DEBIAN-CVE-2026-45445","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.0.20-1~deb12u2","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.0.10-1","evidence":"/affected/0/versions"},{"value":"3.0.10-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.12-1","evidence":"/affected/0/versions"},{"value":"3.0.12-2","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.15-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.16-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u3","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.20-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.9-1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.6-1~deb13u2","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/1/versions"}]},{"name":{"value":"openssl","evidence":"/affected/2/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.3-1","evidence":"/affected/2/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/2/versions"},{"value":"3.5.2-1","evidence":"/affected/2/versions"},{"value":"3.5.3-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.5-1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/2/versions"},{"value":"3.6.0-1","evidence":"/affected/2/versions"},{"value":"3.6.0-2","evidence":"/affected/2/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/2/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-2","evidence":"/affected/2/versions"},{"value":"3.6.1-3","evidence":"/affected/2/versions"},{"value":"3.6.2-1","evidence":"/affected/2/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-45445","aliases":["DEBIAN-CVE-2026-45445"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.20-1~deb12u2"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=bookworm","ecosystem":"Debian:12"},"versions":["3.0.10-1","3.0.10-1~deb12u1","3.0.11-1","3.0.11-1~deb12u1","3.0.11-1~deb12u2","3.0.12-1","3.0.12-2","3.0.13-1~deb12u1","3.0.13-1~deb12u2","3.0.14-1~deb12u1","3.0.14-1~deb12u2","3.0.15-1~deb12u1","3.0.16-1~deb12u1","3.0.17-1~deb12u1","3.0.17-1~deb12u2","3.0.17-1~deb12u3","3.0.18-1~deb12u1","3.0.18-1~deb12u2","3.0.19-1~deb12u1","3.0.19-1~deb12u2","3.0.20-1~deb12u1","3.0.9-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-45445.json"},"ecosystem_specific":{"urgency":"not 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S/MIME signed message could trigger a use-after-free during PKCS#7 signature verification. Impact summary: A use-after-free may result in process crashes, heap corruption, or potentially remote code execution. When processing a PKCS#7 or S/MIME signed message, if the SignedData digestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may incorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent use of the BIO by the calling application results in a use-after-free condition. In the common case this occurs when the application later calls BIO_free() on the BIO originally passed to PKCS7_verify(). Depending on allocator behavior and application-specific BIO usage patterns, this may result in a crash or other memory corruption. In some application contexts this may potentially be exploitable for remote code execution. Applications that process PKCS#7 or S/MIME signed messages using OpenSSL PKCS#7 APIs may be affected. Applications using the CMS APIs for this processing are not affected. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module 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summary: A specially crafted PKCS#7 or S/MIME signed message could trigger a use-after-free during PKCS#7 signature verification. Impact summary: A use-after-free may result in process crashes, heap corruption, or potentially remote code execution. When processing a PKCS#7 or S/MIME signed message, if the SignedData digestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may incorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent use of the BIO by the calling application results in a use-after-free condition. In the common case this occurs when the application later calls BIO_free() on the BIO originally passed to PKCS7_verify(). Depending on allocator behavior and application-specific BIO usage patterns, this may result in a crash or other memory corruption. In some application contexts this may potentially be exploitable for remote code execution. Applications that process PKCS#7 or S/MIME signed messages using OpenSSL PKCS#7 APIs may be affected. Applications using the CMS APIs for this processing are not affected. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.","evidence":"osv:DEBIAN-CVE-2026-45447","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.0.20-1~deb12u2","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.0.10-1","evidence":"/affected/0/versions"},{"value":"3.0.10-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.12-1","evidence":"/affected/0/versions"},{"value":"3.0.12-2","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.15-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.16-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u3","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.20-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.9-1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.6-1~deb13u2","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/1/versions"}]},{"name":{"value":"openssl","evidence":"/affected/2/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.3-1","evidence":"/affected/2/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/2/versions"},{"value":"3.5.2-1","evidence":"/affected/2/versions"},{"value":"3.5.3-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.5-1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/2/versions"},{"value":"3.6.0-1","evidence":"/affected/2/versions"},{"value":"3.6.0-2","evidence":"/affected/2/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/2/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-2","evidence":"/affected/2/versions"},{"value":"3.6.1-3","evidence":"/affected/2/versions"},{"value":"3.6.2-1","evidence":"/affected/2/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-45447","aliases":["DEBIAN-CVE-2026-45447"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.20-1~deb12u2"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=bookworm","ecosystem":"Debian:12"},"versions":["3.0.10-1","3.0.10-1~deb12u1","3.0.11-1","3.0.11-1~deb12u1","3.0.11-1~deb12u2","3.0.12-1","3.0.12-2","3.0.13-1~deb12u1","3.0.13-1~deb12u2","3.0.14-1~deb12u1","3.0.14-1~deb12u2","3.0.15-1~deb12u1","3.0.16-1~deb12u1","3.0.17-1~deb12u1","3.0.17-1~deb12u2","3.0.17-1~deb12u3","3.0.18-1~deb12u1","3.0.18-1~deb12u2","3.0.19-1~deb12u1","3.0.19-1~deb12u2","3.0.20-1~deb12u1","3.0.9-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-45447.json"},"ecosystem_specific":{"urgency":"not 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PKCS#7 or S/MIME signed message could trigger a use-after-free during PKCS#7 signature verification. Impact summary: A use-after-free may result in process crashes, heap corruption, or potentially remote code execution. When processing a PKCS#7 or S/MIME signed message, if the SignedData digestAlgorithms field is present as an empty ASN.1 SET, OpenSSL may incorrectly free a caller-owned BIO during PKCS7_verify(). A subsequent use of the BIO by the calling application results in a use-after-free condition. In the common case this occurs when the application later calls BIO_free() on the BIO originally passed to PKCS7_verify(). Depending on allocator behavior and application-specific BIO usage patterns, this may result in a crash or other memory corruption. In some application contexts this may potentially be exploitable for remote code execution. Applications that process PKCS#7 or S/MIME signed messages using OpenSSL PKCS#7 APIs may be affected. Applications using the CMS APIs for this processing are not affected. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module 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verify the certificate provided in a Root CA key update Certificate Management Protocol (CMP) message response rendered the certificate validation ineffectual, which could lead to escalation of credentials from the Registration Authority (RA) level to the root Certification Authority (root CA) level. 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A typo in the certificate chain building code led to adding an incorrect certificate ('newWithOld' instead of 'oldRoot') to the certificate chain, rendering the certificate verification process ineffectual (only the issuer name and the algorithm OIDs were verified by other parts of the verification code). An attacker who already has credentials that satisfy the CMP message protection checks can 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Impact Summary: The Registration Autority could replace the root CA certificate for the CMP clients with an arbitrary root CA certificate. One of the parts of the Certificate Management Protocol (CMP), specified in RFC 9810, is Root Certification Authority (root CA) key Rollover, which is sent by the server in a message with type 'id-it-rootCaKeyUpdate'. As part of these messages, 'newWithOld' certificate, the new root CA certificate signed with the old root CA key, is provided, and verifying its signature is crucial for transferring the trust from the old CA key to the new one. The 'id-it-rootCaKeyUpdate' messages are expected to be processed with OSSL_CMP_get1_rootCaKeyUpdate(), that is expected to verify the 'newWithOld' certificate. A typo in the certificate chain building code led to adding an incorrect certificate ('newWithOld' instead of 'oldRoot') to the certificate chain, rendering the certificate verification process ineffectual (only the issuer name and the algorithm OIDs were verified by other parts of the verification code). An attacker who already has credentials that satisfy the CMP message protection checks can 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used to verify the certificate provided in a Root CA key update Certificate Management Protocol (CMP) message response rendered the certificate validation ineffectual, which could lead to escalation of credentials from the Registration Authority (RA) level to the root Certification Authority (root CA) level. Impact Summary: The Registration Autority could replace the root CA certificate for the CMP clients with an arbitrary root CA certificate. One of the parts of the Certificate Management Protocol (CMP), specified in RFC 9810, is Root Certification Authority (root CA) key Rollover, which is sent by the server in a message with type 'id-it-rootCaKeyUpdate'. As part of these messages, 'newWithOld' certificate, the new root CA certificate signed with the old root CA key, is provided, and verifying its signature is crucial for transferring the trust from the old CA key to the new one. The 'id-it-rootCaKeyUpdate' messages are expected to be processed with OSSL_CMP_get1_rootCaKeyUpdate(), that is expected to verify the 'newWithOld' certificate. A typo in the certificate chain building code led to adding an incorrect certificate ('newWithOld' instead of 'oldRoot') to the certificate chain, rendering the certificate verification process ineffectual (only the issuer name and the algorithm OIDs were verified by other parts of the verification code). An attacker who already has credentials that satisfy the CMP message protection checks can 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Impact summary: The Bleichenbacher-style attack allows an attacker to use the victim's vulnerable application as a way to decrypt or sign messages with the victim's private RSA key. The attack is possible in 2 variants. 1. The decryption API (CMS_decrypt(), PKCS7_decrypt()) is used without providing the recipient certificate. In this case OpenSSL iterates over every KeyTransRecipientInfo (KTRI) without stopping at the first success. An attacker who authors a message with two KTRI entries — the first one wrapping a real CEK under the victim's public key, the second with an arbitrary probe ciphertext — obtains opportunity to iterate the 2nd KTRI to get a valid PKCS#1 v1.5 padding if the error code of the application is available. That is a Bleichenbacher oracle (Bleichenbacher, CRYPTO '98): an adaptive-chosen-ciphertext side channel from which the attacker decrypts any RSA ciphertext to the victim's key or forges any PKCS#1 v1.5 signature under it. 2. 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Impact summary: The Bleichenbacher-style attack allows an attacker to use the victim's vulnerable application as a way to decrypt or sign messages with the victim's private RSA key. The attack is possible in 2 variants. 1. The decryption API (CMS_decrypt(), PKCS7_decrypt()) is used without providing the recipient certificate. In this case OpenSSL iterates over every KeyTransRecipientInfo (KTRI) without stopping at the first success. An attacker who authors a message with two KTRI entries — the first one wrapping a real CEK under the victim's public key, the second with an arbitrary probe ciphertext — obtains opportunity to iterate the 2nd KTRI to get a valid PKCS#1 v1.5 padding if the error code of the application is available. That is a Bleichenbacher oracle (Bleichenbacher, CRYPTO '98): an adaptive-chosen-ciphertext side channel from which the attacker decrypts any RSA ciphertext to the victim's key or forges any PKCS#1 v1.5 signature under it. 2. When the decryption API (CMS_decrypt(), PKCS7_decrypt()) is provided with the recipient certificate, and the recipient is not found, a random key is substituted. An attacker who authors a message and is able to compare both error code and the result of the decryption, can mount a Bleichenbacher oracle. 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Impact summary: A malicious or intercepted CMP endpoint can crash a CMP client that enforces an expected sender or uses a pinned server certificate whose subject becomes the default expected sender. CWE: CWE-134 (Use of Externally-Controlled Format String) Description: When validating a received CMP message, ossl_cmp_msg_check_update() converts the peer-supplied sender distinguished name with X509_NAME_oneline() and passes it directly as the format argument to ERR_raise_data(). Percent characters survive the conversion, so a sender DN such as \"CN=%s%n\" reaches BIO_vsnprintf() as an attacker-controlled format string with no matching variadic arguments. This path is only reached when the caller configures an expected sender or pins a server certificate, which is the normal configuration for a CMP client validating server responses. Since the attacker controls the format string but none of the variadic arguments, such specifiers as %s and %n dereference or write through unrelated stack contents and crash the client. The reliable consequence is a denial of service, when the response comes from a malicious or intercepted CMP endpoint. There is no controlled memory write, arbitrary-address read, or reliable path to remote code execution. FIPS impact: no No FIPS modules are affected by this issue, as the CMP protocol 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summary: OpenSSL CMP response validation passed an unexpected response sender distinguished name directly as the format string to `ERR_raise_data()`. Impact summary: A malicious or intercepted CMP endpoint can crash a CMP client that enforces an expected sender or uses a pinned server certificate whose subject becomes the default expected sender. CWE: CWE-134 (Use of Externally-Controlled Format String) Description: When validating a received CMP message, ossl_cmp_msg_check_update() converts the peer-supplied sender distinguished name with X509_NAME_oneline() and passes it directly as the format argument to ERR_raise_data(). Percent characters survive the conversion, so a sender DN such as \"CN=%s%n\" reaches BIO_vsnprintf() as an attacker-controlled format string with no matching variadic arguments. This path is only reached when the caller configures an expected sender or pins a server certificate, which is the normal configuration for a CMP client validating server responses. Since the attacker controls the format string but none of the variadic arguments, such specifiers as %s and %n dereference or write through unrelated stack contents and crash the client. The reliable consequence is a denial of service, when the response comes from a malicious or intercepted CMP endpoint. There is no controlled memory write, arbitrary-address read, or reliable path to remote code execution. FIPS impact: no No FIPS modules are affected by this issue, as the CMP protocol 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validation passed an unexpected response sender distinguished name directly as the format string to `ERR_raise_data()`. Impact summary: A malicious or intercepted CMP endpoint can crash a CMP client that enforces an expected sender or uses a pinned server certificate whose subject becomes the default expected sender. CWE: CWE-134 (Use of Externally-Controlled Format String) Description: When validating a received CMP message, ossl_cmp_msg_check_update() converts the peer-supplied sender distinguished name with X509_NAME_oneline() and passes it directly as the format argument to ERR_raise_data(). Percent characters survive the conversion, so a sender DN such as \"CN=%s%n\" reaches BIO_vsnprintf() as an attacker-controlled format string with no matching variadic arguments. This path is only reached when the caller configures an expected sender or pins a server certificate, which is the normal configuration for a CMP client validating server responses. Since the attacker controls the format string but none of the variadic arguments, such specifiers as %s and %n dereference or write through unrelated stack contents and crash the client. The reliable consequence is a denial of service, when the response comes from a malicious or intercepted CMP endpoint. There is no controlled memory write, arbitrary-address read, or reliable path to remote code execution. FIPS impact: no No FIPS modules are affected by this issue, as the CMP protocol 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future epoch while a handshake is in progress causes OpenSSL to buffer far more memory than the record itself requires. Impact summary: A peer can use a small amount of network traffic to make an OpenSSL DTLS endpoint retain a disproportionately large amount of memory, which may lead to a Denial of Service. CWE: CWE-405: Asymmetric Resource Consumption (Amplification) Description: While a DTLS handshake is in progress, a peer may legitimately have already moved on to the next epoch (for example, having sent its ChangeCipherSpec and Finished messages) before the local endpoint has processed the same transition, typically because of reordering on the underlying UDP transport. OpenSSL buffers such early records so that they can be processed once the local endpoint catches up. Buffering a record currently retains the entire read buffer it arrived in, which is sized to hold the largest possible DTLS record (around 16 kilobytes), rather than just the bytes that make up the record itself. Up to 100 such records may be buffered per connection. As a result, a peer that sends a stream of small forged records claiming to belong to the next epoch can cause an OpenSSL DTLS endpoint to retain around 1.7 megabytes of memory, despite sending only a small fraction of that amount of data over the network. An attacker therefore gains a memory amplification factor of around 1200, and can multiply the effect across as many associations as it is able 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Impact summary: A peer can use a small amount of network traffic to make an OpenSSL DTLS endpoint retain a disproportionately large amount of memory, which may lead to a Denial of Service. CWE: CWE-405: Asymmetric Resource Consumption (Amplification) Description: While a DTLS handshake is in progress, a peer may legitimately have already moved on to the next epoch (for example, having sent its ChangeCipherSpec and Finished messages) before the local endpoint has processed the same transition, typically because of reordering on the underlying UDP transport. OpenSSL buffers such early records so that they can be processed once the local endpoint catches up. Buffering a record currently retains the entire read buffer it arrived in, which is sized to hold the largest possible DTLS record (around 16 kilobytes), rather than just the bytes that make up the record itself. Up to 100 such records may be buffered per connection. As a result, a peer that sends a stream of small forged records claiming to belong to the next epoch can cause an OpenSSL DTLS endpoint to retain around 1.7 megabytes of memory, despite sending only a small fraction of that amount of data over the network. An attacker therefore gains a memory amplification factor of around 1200, and can multiply the effect across as many associations as it is able 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for a future epoch while a handshake is in progress causes OpenSSL to buffer far more memory than the record itself requires. Impact summary: A peer can use a small amount of network traffic to make an OpenSSL DTLS endpoint retain a disproportionately large amount of memory, which may lead to a Denial of Service. CWE: CWE-405: Asymmetric Resource Consumption (Amplification) Description: While a DTLS handshake is in progress, a peer may legitimately have already moved on to the next epoch (for example, having sent its ChangeCipherSpec and Finished messages) before the local endpoint has processed the same transition, typically because of reordering on the underlying UDP transport. OpenSSL buffers such early records so that they can be processed once the local endpoint catches up. Buffering a record currently retains the entire read buffer it arrived in, which is sized to hold the largest possible DTLS record (around 16 kilobytes), rather than just the bytes that make up the record itself. Up to 100 such records may be buffered per connection. As a result, a peer that sends a stream of small forged records claiming to belong to the next epoch can cause an OpenSSL DTLS endpoint to retain around 1.7 megabytes of memory, despite sending only a small fraction of that amount of data over the network. An attacker therefore gains a memory amplification factor of around 1200, and can multiply the effect across as many associations as it is able 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a memory leak in a TLS client that has enabled OCSP response checking by sending an OCSP response that contains no single response entries. Impact summary: An attacker can leak an attacker-tunable amount of memory per TLS handshake in a victim client application. A long-running client that repeatedly connects to a malicious server can have its memory exhausted, resulting in a Denial of Service. CWE: CWE-401: Missing Release of Memory after Effective Lifetime Description: The affected function is called during X.509 certificate chain verification when OCSP response checking is enabled with the X509_V_FLAG_OCSP_RESP_CHECK or X509_V_FLAG_OCSP_RESP_CHECK_ALL verification flags, for example when a TLS client verifies an OCSP response stapled into the TLS handshake by the server. When the received BasicOCSPResponse contains an empty SEQUENCE OF SingleResponse, which is permitted on the wire and accepted by the OpenSSL decoder, the OCSP_BASICRESP structure allocated by OCSP_response_get1_basic() was not freed because an early return bypassed the cleanup code at the end of the function. The amount of memory leaked per handshake can be amplified by the attacker by padding the certs field of the BasicOCSPResponse with bogus certificates, which are parsed and stored in the leaked structure before the empty response check triggers the early return. A long-running TLS client that repeatedly connects to a malicious server can have its memory ","evidence":"osv:DEBIAN-CVE-2026-54876","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.4-1","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/0/versions"},{"value":"3.5.2-1","evidence":"/affected/0/versions"},{"value":"3.5.3-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.5-1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/0/versions"},{"value":"3.6.0-1","evidence":"/affected/0/versions"},{"value":"3.6.0-2","evidence":"/affected/0/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/0/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/0/versions"},{"value":"3.6.1-1","evidence":"/affected/0/versions"},{"value":"3.6.1-2","evidence":"/affected/0/versions"},{"value":"3.6.1-3","evidence":"/affected/0/versions"},{"value":"3.6.2-1","evidence":"/affected/0/versions"},{"value":"3.6.3-1","evidence":"/affected/0/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-54876","aliases":["DEBIAN-CVE-2026-54876"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.4-1"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=forky","ecosystem":"Debian:14"},"versions":["3.5.1-1","3.5.2-1","3.5.3-1","3.5.4-1","3.5.4-1~deb13u1","3.5.4-1~deb13u2","3.5.5-1","3.5.5-1~deb13u1","3.5.5-1~deb13u2","3.5.6-1~deb13u1","3.5.6-1~deb13u2","3.5.7-1~deb13u1","3.5.7-1~deb13u2","3.5.7-1~deb13u3","3.6.0-1","3.6.0-2","3.6.0~~alpha1-1","3.6.0~~beta1-1","3.6.1-1","3.6.1-2","3.6.1-3","3.6.2-1","3.6.3-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54876.json"},"ecosystem_specific":{"urgency":"not yet assigned"}}],"modified":"2026-10-01T03:03:18.641846990Z","provider":"osv","references":["https://security-tracker.debian.org/tracker/CVE-2026-54876"]},"related_cves":[],"security_relevant":true,"severity_evidence":null},"group_id":"advisory:edeec59f-2eb6-4c45-bde5-d4f5ee395a14","priority":{"reasons":["unrated_security_fix"],"severity":"unknown","linked_cves":[],"fix_available":true,"known_exploited":false,"publisher_severity":"unknown"},"revision":1,"source_id":"core-osv","source_url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-54876","advisory_id":"edeec59f-2eb6-4c45-bde5-d4f5ee395a14","event_types":["advisory"],"published_at":"2026-10-25T17:10:34.196066+00:00","technologies":["core-osv","openssl"],"context_update":false,"extraction_method":"structured","source_published_at":"2026-08-05T15:16:53.487+00:00","detail_url":"/advisories/advisory%3Aedeec59f-2eb6-4c45-bde5-d4f5ee395a14","group":{"id":"advisory:edeec59f-2eb6-4c45-bde5-d4f5ee395a14","revision":1,"primary_event_id":57317,"change":"published","superseded_by":[],"changed":{"id":57317,"cve_ids":[],"payload":{"kind":"advisory","title":"DEBIAN-CVE-2026-54876","summary":"Issue summary: A malicious TLS server can cause a memory leak in a TLS client that has enabled OCSP response checking by sending an OCSP response that contains no single response entries. Impact summary: An attacker can leak an attacker-tunable amount of memory per TLS handshake in a victim client application. A long-running client that repeatedly connects to a malicious server can have its memory exhausted, resulting in a Denial of Service. CWE: CWE-401: Missing Release of Memory after Effective Lifetime Description: The affected function is called during X.509 certificate chain verification when OCSP response checking is enabled with the X509_V_FLAG_OCSP_RESP_CHECK or X509_V_FLAG_OCSP_RESP_CHECK_ALL verification flags, for example when a TLS client verifies an OCSP response stapled into the TLS handshake by the server. When the received BasicOCSPResponse contains an empty SEQUENCE OF SingleResponse, which is permitted on the wire and accepted by the OpenSSL decoder, the OCSP_BASICRESP structure allocated by OCSP_response_get1_basic() was not freed because an early return bypassed the cleanup code at the end of the function. The amount of memory leaked per handshake can be amplified by the attacker by padding the certs field of the BasicOCSPResponse with bogus certificates, which are parsed and stored in the leaked structure before the empty response check triggers the early return. A long-running TLS client that repeatedly connects to a malicious server can have its memory ","evidence":"osv:DEBIAN-CVE-2026-54876","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.4-1","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/0/versions"},{"value":"3.5.2-1","evidence":"/affected/0/versions"},{"value":"3.5.3-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.5-1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/0/versions"},{"value":"3.6.0-1","evidence":"/affected/0/versions"},{"value":"3.6.0-2","evidence":"/affected/0/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/0/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/0/versions"},{"value":"3.6.1-1","evidence":"/affected/0/versions"},{"value":"3.6.1-2","evidence":"/affected/0/versions"},{"value":"3.6.1-3","evidence":"/affected/0/versions"},{"value":"3.6.2-1","evidence":"/affected/0/versions"},{"value":"3.6.3-1","evidence":"/affected/0/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-54876","aliases":["DEBIAN-CVE-2026-54876"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.4-1"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=forky","ecosystem":"Debian:14"},"versions":["3.5.1-1","3.5.2-1","3.5.3-1","3.5.4-1","3.5.4-1~deb13u1","3.5.4-1~deb13u2","3.5.5-1","3.5.5-1~deb13u1","3.5.5-1~deb13u2","3.5.6-1~deb13u1","3.5.6-1~deb13u2","3.5.7-1~deb13u1","3.5.7-1~deb13u2","3.5.7-1~deb13u3","3.6.0-1","3.6.0-2","3.6.0~~alpha1-1","3.6.0~~beta1-1","3.6.1-1","3.6.1-2","3.6.1-3","3.6.2-1","3.6.3-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54876.json"},"ecosystem_specific":{"urgency":"not yet assigned"}}],"modified":"2026-10-01T03:03:18.641846990Z","provider":"osv","references":["https://security-tracker.debian.org/tracker/CVE-2026-54876"]},"related_cves":[],"security_relevant":true,"severity_evidence":null},"group_id":"advisory:edeec59f-2eb6-4c45-bde5-d4f5ee395a14","priority":{"reasons":["unrated_security_fix"],"severity":"unknown","linked_cves":[],"fix_available":true,"known_exploited":false,"publisher_severity":"unknown"},"revision":1,"source_id":"core-osv","source_url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-54876","advisory_id":"edeec59f-2eb6-4c45-bde5-d4f5ee395a14","event_types":["advisory"],"published_at":"2026-10-25T17:10:34.196066+00:00","technologies":["core-osv","openssl"],"context_update":false,"extraction_method":"structured","source_published_at":"2026-08-05T15:16:53.487+00:00","detail_url":"/events/57317"},"members":[{"id":57317,"cve_ids":[],"payload":{"kind":"advisory","title":"DEBIAN-CVE-2026-54876","summary":"Issue summary: A malicious TLS server can cause a memory leak in a TLS client that has enabled OCSP response checking by sending an OCSP response that contains no single response entries. Impact summary: An attacker can leak an attacker-tunable amount of memory per TLS handshake in a victim client application. A long-running client that repeatedly connects to a malicious server can have its memory exhausted, resulting in a Denial of Service. CWE: CWE-401: Missing Release of Memory after Effective Lifetime Description: The affected function is called during X.509 certificate chain verification when OCSP response checking is enabled with the X509_V_FLAG_OCSP_RESP_CHECK or X509_V_FLAG_OCSP_RESP_CHECK_ALL verification flags, for example when a TLS client verifies an OCSP response stapled into the TLS handshake by the server. When the received BasicOCSPResponse contains an empty SEQUENCE OF SingleResponse, which is permitted on the wire and accepted by the OpenSSL decoder, the OCSP_BASICRESP structure allocated by OCSP_response_get1_basic() was not freed because an early return bypassed the cleanup code at the end of the function. The amount of memory leaked per handshake can be amplified by the attacker by padding the certs field of the BasicOCSPResponse with bogus certificates, which are parsed and stored in the leaked structure before the empty response check triggers the early return. A long-running TLS client that repeatedly connects to a malicious server can have its memory ","evidence":"osv:DEBIAN-CVE-2026-54876","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.4-1","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/0/versions"},{"value":"3.5.2-1","evidence":"/affected/0/versions"},{"value":"3.5.3-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.5-1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/0/versions"},{"value":"3.6.0-1","evidence":"/affected/0/versions"},{"value":"3.6.0-2","evidence":"/affected/0/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/0/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/0/versions"},{"value":"3.6.1-1","evidence":"/affected/0/versions"},{"value":"3.6.1-2","evidence":"/affected/0/versions"},{"value":"3.6.1-3","evidence":"/affected/0/versions"},{"value":"3.6.2-1","evidence":"/affected/0/versions"},{"value":"3.6.3-1","evidence":"/affected/0/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-54876","aliases":["DEBIAN-CVE-2026-54876"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.4-1"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=forky","ecosystem":"Debian:14"},"versions":["3.5.1-1","3.5.2-1","3.5.3-1","3.5.4-1","3.5.4-1~deb13u1","3.5.4-1~deb13u2","3.5.5-1","3.5.5-1~deb13u1","3.5.5-1~deb13u2","3.5.6-1~deb13u1","3.5.6-1~deb13u2","3.5.7-1~deb13u1","3.5.7-1~deb13u2","3.5.7-1~deb13u3","3.6.0-1","3.6.0-2","3.6.0~~alpha1-1","3.6.0~~beta1-1","3.6.1-1","3.6.1-2","3.6.1-3","3.6.2-1","3.6.3-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54876.json"},"ecosystem_specific":{"urgency":"not yet assigned"}}],"modified":"2026-10-01T03:03:18.641846990Z","provider":"osv","references":["https://security-tracker.debian.org/tracker/CVE-2026-54876"]},"related_cves":[],"security_relevant":true,"severity_evidence":null},"group_id":"advisory:edeec59f-2eb6-4c45-bde5-d4f5ee395a14","priority":{"reasons":["unrated_security_fix"],"severity":"unknown","linked_cves":[],"fix_available":true,"known_exploited":false,"publisher_severity":"unknown"},"revision":1,"source_id":"core-osv","source_url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-54876","advisory_id":"edeec59f-2eb6-4c45-bde5-d4f5ee395a14","event_types":["advisory"],"published_at":"2026-10-25T17:10:34.196066+00:00","technologies":["core-osv","openssl"],"context_update":false,"extraction_method":"structured","source_published_at":"2026-08-05T15:16:53.487+00:00","detail_url":"/events/57317"}]}},{"id":57594,"cve_ids":[],"payload":{"kind":"advisory","title":"DEBIAN-CVE-2026-45446","summary":"Issue summary: The implementations of AES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) mishandle the authentication of AAD (Additional Authenticated Data) with an empty ciphertext allowing a forgery of such messages. Impact summary: An attacker can forge empty messages with arbitrary AAD to the victim's application using these ciphers. AES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) are nonce-misuse-resistant AEAD modes: they accept a key, nonce, optional AAD (bytes that are authenticated but not encrypted), and plaintext, and produces ciphertext plus a 16-byte tag. On decrypt, `EVP_DecryptFinal_ex()` is documented to return success only if the tag is verified succesfully. In OpenSSL's provider implementation of these ciphers, the expected tag is computed only when decryption function is invoked with non-empty data. If the caller supplies AAD and then calls `EVP_DecryptFinal_ex()` without invocation of the ciphertext update, which can happen when the received ciphertext length is zero, the tag is never recalculated and still holds its all-zeros value. When AES-GCM-SIV is used, an attacker who sends arbitrary AAD, empty ciphertext, and all-zeros tag passes authentication under any key they do not know, single-shot. When AES-SIV is used, for mounting the attack it's necessary for the application to reuse the decryption context without resetting the key. AES-SIV is implemented since OpenSSL 3.0. AES-GCM-SIV is implemented since OpenSSL 3.2. No protocols implemented in OpenSSL itself 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Impact summary: An attacker can forge empty messages with arbitrary AAD to the victim's application using these ciphers. AES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) are nonce-misuse-resistant AEAD modes: they accept a key, nonce, optional AAD (bytes that are authenticated but not encrypted), and plaintext, and produces ciphertext plus a 16-byte tag. On decrypt, `EVP_DecryptFinal_ex()` is documented to return success only if the tag is verified succesfully. In OpenSSL's provider implementation of these ciphers, the expected tag is computed only when decryption function is invoked with non-empty data. If the caller supplies AAD and then calls `EVP_DecryptFinal_ex()` without invocation of the ciphertext update, which can happen when the received ciphertext length is zero, the tag is never recalculated and still holds its all-zeros value. When AES-GCM-SIV is used, an attacker who sends arbitrary AAD, empty ciphertext, and all-zeros tag passes authentication under any key they do not know, single-shot. When AES-SIV is used, for mounting the attack it's necessary for the application to reuse the decryption context without resetting the key. AES-SIV is implemented since OpenSSL 3.0. AES-GCM-SIV is implemented since OpenSSL 3.2. No protocols implemented in OpenSSL itself 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AES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) mishandle the authentication of AAD (Additional Authenticated Data) with an empty ciphertext allowing a forgery of such messages. Impact summary: An attacker can forge empty messages with arbitrary AAD to the victim's application using these ciphers. AES-SIV (RFC 5297) and AES-GCM-SIV (RFC 8452) are nonce-misuse-resistant AEAD modes: they accept a key, nonce, optional AAD (bytes that are authenticated but not encrypted), and plaintext, and produces ciphertext plus a 16-byte tag. On decrypt, `EVP_DecryptFinal_ex()` is documented to return success only if the tag is verified succesfully. In OpenSSL's provider implementation of these ciphers, the expected tag is computed only when decryption function is invoked with non-empty data. If the caller supplies AAD and then calls `EVP_DecryptFinal_ex()` without invocation of the ciphertext update, which can happen when the received ciphertext length is zero, the tag is never recalculated and still holds its all-zeros value. When AES-GCM-SIV is used, an attacker who sends arbitrary AAD, empty ciphertext, and all-zeros tag passes authentication under any key they do not know, single-shot. When AES-SIV is used, for mounting the attack it's necessary for the application to reuse the decryption context without resetting the key. AES-SIV is implemented since OpenSSL 3.0. AES-GCM-SIV is implemented since OpenSSL 3.2. No protocols implemented in OpenSSL itself ","evidence":"osv:DEBIAN-CVE-2026-45446","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.0.20-1~deb12u2","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.0.10-1","evidence":"/affected/0/versions"},{"value":"3.0.10-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.12-1","evidence":"/affected/0/versions"},{"value":"3.0.12-2","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.15-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.16-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u3","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.20-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.9-1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.6-1~deb13u2","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/1/versions"}]},{"name":{"value":"openssl","evidence":"/affected/2/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.3-1","evidence":"/affected/2/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/2/versions"},{"value":"3.5.2-1","evidence":"/affected/2/versions"},{"value":"3.5.3-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.5-1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/2/versions"},{"value":"3.6.0-1","evidence":"/affected/2/versions"},{"value":"3.6.0-2","evidence":"/affected/2/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/2/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-2","evidence":"/affected/2/versions"},{"value":"3.6.1-3","evidence":"/affected/2/versions"},{"value":"3.6.2-1","evidence":"/affected/2/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-45446","aliases":["DEBIAN-CVE-2026-45446"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.20-1~deb12u2"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=bookworm","ecosystem":"Debian:12"},"versions":["3.0.10-1","3.0.10-1~deb12u1","3.0.11-1","3.0.11-1~deb12u1","3.0.11-1~deb12u2","3.0.12-1","3.0.12-2","3.0.13-1~deb12u1","3.0.13-1~deb12u2","3.0.14-1~deb12u1","3.0.14-1~deb12u2","3.0.15-1~deb12u1","3.0.16-1~deb12u1","3.0.17-1~deb12u1","3.0.17-1~deb12u2","3.0.17-1~deb12u3","3.0.18-1~deb12u1","3.0.18-1~deb12u2","3.0.19-1~deb12u1","3.0.19-1~deb12u2","3.0.20-1~deb12u1","3.0.9-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-45446.json"},"ecosystem_specific":{"urgency":"not 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is called with a DHX (X9.42) peer key, the peer key is not properly checked for the subgroup membership. Impact summary: A malicious peer which presents an X9.42 key carrying the victim's p and g parameters, a forged q = r (a small prime factor of the cofactor (p−1)/q_local), and a public value Y of order r can recover the victim's private key after a small number of key exchange attempts. When EVP_PKEY_derive_set_peer() is called with a DHX (X9.42) peer key, the subgroup membership check Y^q ≡ 1 (mod p) is performed using the peer's own q parameter, not the local key's q. The peer's domain parameters are then matched against the domain parameters of the private key, but the value of q is not compared. A malicious peer who presents an X9.42 key carrying the victim's p, g, a forged q = r (a small prime factor of the cofactor), and a public value Y of order r passes all checks. The shared secret then takes only r distinct values, leaking priv mod r. Repeating for each small-prime factor of the cofactor and combining via CRT recovers the full private key (Lim–Lee / small-subgroup-confinement attack). The realistic attack surface is narrow: principally CMP deployments with long-lived RA/CA DHX keys and bespoke enterprise or government applications using X9.42 DHX static keys with interactive protocols and therefore this issue was assigned Low severity. The FIPS modules in 4.0, 3.6, 3.5, 3.4, 3.1.2 and 3.0 are affected by this issue.","evidence":"osv:DEBIAN-CVE-2026-42770","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.0.20-1~deb12u2","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.0.10-1","evidence":"/affected/0/versions"},{"value":"3.0.10-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.12-1","evidence":"/affected/0/versions"},{"value":"3.0.12-2","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.15-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.16-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u3","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.20-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.9-1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.6-1~deb13u2","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/1/versions"}]},{"name":{"value":"openssl","evidence":"/affected/2/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.3-1","evidence":"/affected/2/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/2/versions"},{"value":"3.5.2-1","evidence":"/affected/2/versions"},{"value":"3.5.3-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.5-1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/2/versions"},{"value":"3.6.0-1","evidence":"/affected/2/versions"},{"value":"3.6.0-2","evidence":"/affected/2/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/2/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-2","evidence":"/affected/2/versions"},{"value":"3.6.1-3","evidence":"/affected/2/versions"},{"value":"3.6.2-1","evidence":"/affected/2/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-42770","aliases":["DEBIAN-CVE-2026-42770"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.20-1~deb12u2"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=bookworm","ecosystem":"Debian:12"},"versions":["3.0.10-1","3.0.10-1~deb12u1","3.0.11-1","3.0.11-1~deb12u1","3.0.11-1~deb12u2","3.0.12-1","3.0.12-2","3.0.13-1~deb12u1","3.0.13-1~deb12u2","3.0.14-1~deb12u1","3.0.14-1~deb12u2","3.0.15-1~deb12u1","3.0.16-1~deb12u1","3.0.17-1~deb12u1","3.0.17-1~deb12u2","3.0.17-1~deb12u3","3.0.18-1~deb12u1","3.0.18-1~deb12u2","3.0.19-1~deb12u1","3.0.19-1~deb12u2","3.0.20-1~deb12u1","3.0.9-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42770.json"},"ecosystem_specific":{"urgency":"not 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summary: When EVP_PKEY_derive_set_peer() is called with a DHX (X9.42) peer key, the peer key is not properly checked for the subgroup membership. Impact summary: A malicious peer which presents an X9.42 key carrying the victim's p and g parameters, a forged q = r (a small prime factor of the cofactor (p−1)/q_local), and a public value Y of order r can recover the victim's private key after a small number of key exchange attempts. When EVP_PKEY_derive_set_peer() is called with a DHX (X9.42) peer key, the subgroup membership check Y^q ≡ 1 (mod p) is performed using the peer's own q parameter, not the local key's q. The peer's domain parameters are then matched against the domain parameters of the private key, but the value of q is not compared. A malicious peer who presents an X9.42 key carrying the victim's p, g, a forged q = r (a small prime factor of the cofactor), and a public value Y of order r passes all checks. The shared secret then takes only r distinct values, leaking priv mod r. Repeating for each small-prime factor of the cofactor and combining via CRT recovers the full private key (Lim–Lee / small-subgroup-confinement attack). The realistic attack surface is narrow: principally CMP deployments with long-lived RA/CA DHX keys and bespoke enterprise or government applications using X9.42 DHX static keys with interactive protocols and therefore this issue was assigned Low severity. The FIPS modules in 4.0, 3.6, 3.5, 3.4, 3.1.2 and 3.0 are affected by this 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EVP_PKEY_derive_set_peer() is called with a DHX (X9.42) peer key, the peer key is not properly checked for the subgroup membership. Impact summary: A malicious peer which presents an X9.42 key carrying the victim's p and g parameters, a forged q = r (a small prime factor of the cofactor (p−1)/q_local), and a public value Y of order r can recover the victim's private key after a small number of key exchange attempts. When EVP_PKEY_derive_set_peer() is called with a DHX (X9.42) peer key, the subgroup membership check Y^q ≡ 1 (mod p) is performed using the peer's own q parameter, not the local key's q. The peer's domain parameters are then matched against the domain parameters of the private key, but the value of q is not compared. A malicious peer who presents an X9.42 key carrying the victim's p, g, a forged q = r (a small prime factor of the cofactor), and a public value Y of order r passes all checks. The shared secret then takes only r distinct values, leaking priv mod r. Repeating for each small-prime factor of the cofactor and combining via CRT recovers the full private key (Lim–Lee / small-subgroup-confinement attack). The realistic attack surface is narrow: principally CMP deployments with long-lived RA/CA DHX keys and bespoke enterprise or government applications using X9.42 DHX static keys with interactive protocols and therefore this issue was assigned Low severity. The FIPS modules in 4.0, 3.6, 3.5, 3.4, 3.1.2 and 3.0 are affected by this 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(Certificate Management Protocol) server could trigger a NULL pointer dereference in a CMP client application. Impact summary: A NULL pointer dereference causes a crash of the application and a Denial of Service. An attacker controlling a CMP server (or acting as a man-in-the-middle) could craft a CMP response containing a CRMF (Certificate Request Message Format) CertRepMessage with an EncryptedValue structure where the symmAlg field has an algorithm OID but no parameters field. When the OpenSSL CMP client processes this response, the NULL dereference occurs, causing a crash of the CMP client. Applications that process untrusted CMP/CRMF messages may be affected. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module 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The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module 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CMP (Certificate Management Protocol) server could trigger a NULL pointer dereference in a CMP client application. Impact summary: A NULL pointer dereference causes a crash of the application and a Denial of Service. An attacker controlling a CMP server (or acting as a man-in-the-middle) could craft a CMP response containing a CRMF (Certificate Request Message Format) CertRepMessage with an EncryptedValue structure where the symmAlg field has an algorithm OID but no parameters field. When the OpenSSL CMP client processes this response, the NULL dereference occurs, causing a crash of the CMP client. Applications that process untrusted CMP/CRMF messages may be affected. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.","evidence":"osv:DEBIAN-CVE-2026-42767","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.0.22-1~deb12u1","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.0.10-1","evidence":"/affected/0/versions"},{"value":"3.0.10-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.12-1","evidence":"/affected/0/versions"},{"value":"3.0.12-2","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.15-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.16-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u3","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.20-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.20-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.9-1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.6-1~deb13u2","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/1/versions"}]},{"name":{"value":"openssl","evidence":"/affected/2/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.3-1","evidence":"/affected/2/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/2/versions"},{"value":"3.5.2-1","evidence":"/affected/2/versions"},{"value":"3.5.3-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.5-1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/2/versions"},{"value":"3.6.0-1","evidence":"/affected/2/versions"},{"value":"3.6.0-2","evidence":"/affected/2/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/2/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-2","evidence":"/affected/2/versions"},{"value":"3.6.1-3","evidence":"/affected/2/versions"},{"value":"3.6.2-1","evidence":"/affected/2/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-42767","aliases":["DEBIAN-CVE-2026-42767"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.22-1~deb12u1"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=bookworm","ecosystem":"Debian:12"},"versions":["3.0.10-1","3.0.10-1~deb12u1","3.0.11-1","3.0.11-1~deb12u1","3.0.11-1~deb12u2","3.0.12-1","3.0.12-2","3.0.13-1~deb12u1","3.0.13-1~deb12u2","3.0.14-1~deb12u1","3.0.14-1~deb12u2","3.0.15-1~deb12u1","3.0.16-1~deb12u1","3.0.17-1~deb12u1","3.0.17-1~deb12u2","3.0.17-1~deb12u3","3.0.18-1~deb12u1","3.0.18-1~deb12u2","3.0.19-1~deb12u1","3.0.19-1~deb12u2","3.0.20-1~deb12u1","3.0.20-1~deb12u2","3.0.9-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42767.json"},"ecosystem_specific":{"urgency":"not 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with an invalid token may trigger a NULL pointer dereference in the OpenSSL QUIC server with address validation disabled. Impact summary: NULL pointer dereference typically causes abnormal termination of the affected QUIC server process and a Denial of Service. If the address validation is disabled in the OpenSSL QUIC server implementation, an attacker can crash the server by sending an initial packet with an invalid or expired token. By default, the client address validation is enabled in the OpenSSL QUIC server implementation, which makes the default configuration not vulnerable to this issue. However if the SSL_LISTENER_FLAG_NO_VALIDATE is used with the SSL_new_listener() call, the address validation is disabled making the vulnerable code reachable. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.","evidence":"osv:DEBIAN-CVE-2026-42764","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.6-1~deb13u2","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/0/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.2-1","evidence":"/affected/0/versions"},{"value":"3.5.3-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.5-1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.3-1","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/1/versions"},{"value":"3.6.0-1","evidence":"/affected/1/versions"},{"value":"3.6.0-2","evidence":"/affected/1/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/1/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/1/versions"},{"value":"3.6.1-1","evidence":"/affected/1/versions"},{"value":"3.6.1-2","evidence":"/affected/1/versions"},{"value":"3.6.1-3","evidence":"/affected/1/versions"},{"value":"3.6.2-1","evidence":"/affected/1/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-42764","aliases":["DEBIAN-CVE-2026-42764"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.6-1~deb13u2"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=trixie","ecosystem":"Debian:13"},"versions":["3.5.1-1","3.5.1-1+deb13u1","3.5.2-1","3.5.3-1","3.5.4-1","3.5.4-1~deb13u1","3.5.4-1~deb13u2","3.5.5-1","3.5.5-1~deb13u1","3.5.5-1~deb13u2","3.5.6-1~deb13u1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42764.json"},"ecosystem_specific":{"urgency":"not 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Impact summary: NULL pointer dereference typically causes abnormal termination of the affected QUIC server process and a Denial of Service. If the address validation is disabled in the OpenSSL QUIC server implementation, an attacker can crash the server by sending an initial packet with an invalid or expired token. By default, the client address validation is enabled in the OpenSSL QUIC server implementation, which makes the default configuration not vulnerable to this issue. However if the SSL_LISTENER_FLAG_NO_VALIDATE is used with the SSL_new_listener() call, the address validation is disabled making the vulnerable code reachable. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module 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packet with an invalid token may trigger a NULL pointer dereference in the OpenSSL QUIC server with address validation disabled. Impact summary: NULL pointer dereference typically causes abnormal termination of the affected QUIC server process and a Denial of Service. If the address validation is disabled in the OpenSSL QUIC server implementation, an attacker can crash the server by sending an initial packet with an invalid or expired token. By default, the client address validation is enabled in the OpenSSL QUIC server implementation, which makes the default configuration not vulnerable to this issue. However if the SSL_LISTENER_FLAG_NO_VALIDATE is used with the SSL_new_listener() call, the address validation is disabled making the vulnerable code reachable. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.","evidence":"osv:DEBIAN-CVE-2026-42764","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.6-1~deb13u2","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/0/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.2-1","evidence":"/affected/0/versions"},{"value":"3.5.3-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.5-1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.3-1","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/1/versions"},{"value":"3.6.0-1","evidence":"/affected/1/versions"},{"value":"3.6.0-2","evidence":"/affected/1/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/1/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/1/versions"},{"value":"3.6.1-1","evidence":"/affected/1/versions"},{"value":"3.6.1-2","evidence":"/affected/1/versions"},{"value":"3.6.1-3","evidence":"/affected/1/versions"},{"value":"3.6.2-1","evidence":"/affected/1/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-42764","aliases":["DEBIAN-CVE-2026-42764"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.6-1~deb13u2"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=trixie","ecosystem":"Debian:13"},"versions":["3.5.1-1","3.5.1-1+deb13u1","3.5.2-1","3.5.3-1","3.5.4-1","3.5.4-1~deb13u1","3.5.4-1~deb13u2","3.5.5-1","3.5.5-1~deb13u1","3.5.5-1~deb13u2","3.5.6-1~deb13u1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42764.json"},"ecosystem_specific":{"urgency":"not yet assigned"}},{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.3-1"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=forky","ecosystem":"Debian:14"},"versions":["3.5.1-1","3.5.2-1","3.5.3-1","3.5.4-1","3.5.4-1~deb13u1","3.5.4-1~deb13u2","3.5.5-1","3.5.5-1~deb13u1","3.5.5-1~deb13u2","3.5.6-1~deb13u1","3.5.6-1~deb13u2","3.5.7-1~deb13u1","3.5.7-1~deb13u2","3.5.7-1~deb13u3","3.6.0-1","3.6.0-2","3.6.0~~alpha1-1","3.6.0~~beta1-1","3.6.1-1","3.6.1-2","3.6.1-3","3.6.2-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42764.json"},"ecosystem_specific":{"urgency":"not yet assigned"}}],"modified":"2026-10-01T03:03:12.046150029Z","provider":"osv","references":["https://security-tracker.debian.org/tracker/CVE-2026-42764"]},"related_cves":[],"security_relevant":true,"severity_evidence":null},"group_id":"advisory:09c1fc56-f9e8-478d-a09a-538d513419c7","priority":{"reasons":["unrated_security_fix"],"severity":"unknown","linked_cves":[],"fix_available":true,"known_exploited":false,"publisher_severity":"unknown"},"revision":1,"source_id":"core-osv","source_url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-42764","advisory_id":"09c1fc56-f9e8-478d-a09a-538d513419c7","event_types":["advisory"],"published_at":"2026-10-25T16:55:19.906815+00:00","technologies":["core-osv","openssl"],"context_update":false,"extraction_method":"structured","source_published_at":"2026-06-09T17:17:07.693+00:00","detail_url":"/events/56965"}]}},{"id":57340,"cve_ids":[],"payload":{"kind":"advisory","title":"DEBIAN-CVE-2026-34183","summary":"Issue summary: Remote peer may exhaust heap memory of the QUIC server or client by flooding it with packets containing PATH_CHALLENGE frames. Impact summary: A malicious remote peer can cause an unbounded memory allocation which can lead to an abnormal termination of the application acting as a QUIC client or server and a Denial of Service. A remote peer may exhaust heap memory by flooding the local QUIC stack with PATH_CHALLENGE frames. The local QUIC stack allocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives. The allocated PATH_RESPONSE frame gets freed only when the remote peer acknowledges reception of the PATH_RESPONSE frame which will not be done by a malicious peer. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue. The QUIC stack is outside of OpenSSL FIPS module boundary.","evidence":"osv:DEBIAN-CVE-2026-34183","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.6-1~deb13u2","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/0/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.2-1","evidence":"/affected/0/versions"},{"value":"3.5.3-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.5-1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.3-1","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/1/versions"},{"value":"3.6.0-1","evidence":"/affected/1/versions"},{"value":"3.6.0-2","evidence":"/affected/1/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/1/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/1/versions"},{"value":"3.6.1-1","evidence":"/affected/1/versions"},{"value":"3.6.1-2","evidence":"/affected/1/versions"},{"value":"3.6.1-3","evidence":"/affected/1/versions"},{"value":"3.6.2-1","evidence":"/affected/1/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-34183","aliases":["DEBIAN-CVE-2026-34183"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.6-1~deb13u2"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=trixie","ecosystem":"Debian:13"},"versions":["3.5.1-1","3.5.1-1+deb13u1","3.5.2-1","3.5.3-1","3.5.4-1","3.5.4-1~deb13u1","3.5.4-1~deb13u2","3.5.5-1","3.5.5-1~deb13u1","3.5.5-1~deb13u2","3.5.6-1~deb13u1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34183.json"},"ecosystem_specific":{"urgency":"not 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summary: Remote peer may exhaust heap memory of the QUIC server or client by flooding it with packets containing PATH_CHALLENGE frames. Impact summary: A malicious remote peer can cause an unbounded memory allocation which can lead to an abnormal termination of the application acting as a QUIC client or server and a Denial of Service. A remote peer may exhaust heap memory by flooding the local QUIC stack with PATH_CHALLENGE frames. The local QUIC stack allocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives. The allocated PATH_RESPONSE frame gets freed only when the remote peer acknowledges reception of the PATH_RESPONSE frame which will not be done by a malicious peer. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue. The QUIC stack is outside of OpenSSL FIPS module boundary.","evidence":"osv:DEBIAN-CVE-2026-34183","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.6-1~deb13u2","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/0/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.2-1","evidence":"/affected/0/versions"},{"value":"3.5.3-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.5-1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.3-1","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/1/versions"},{"value":"3.6.0-1","evidence":"/affected/1/versions"},{"value":"3.6.0-2","evidence":"/affected/1/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/1/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/1/versions"},{"value":"3.6.1-1","evidence":"/affected/1/versions"},{"value":"3.6.1-2","evidence":"/affected/1/versions"},{"value":"3.6.1-3","evidence":"/affected/1/versions"},{"value":"3.6.2-1","evidence":"/affected/1/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-34183","aliases":["DEBIAN-CVE-2026-34183"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.6-1~deb13u2"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=trixie","ecosystem":"Debian:13"},"versions":["3.5.1-1","3.5.1-1+deb13u1","3.5.2-1","3.5.3-1","3.5.4-1","3.5.4-1~deb13u1","3.5.4-1~deb13u2","3.5.5-1","3.5.5-1~deb13u1","3.5.5-1~deb13u2","3.5.6-1~deb13u1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34183.json"},"ecosystem_specific":{"urgency":"not yet assigned"}},{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.3-1"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=forky","ecosystem":"Debian:14"},"versions":["3.5.1-1","3.5.2-1","3.5.3-1","3.5.4-1","3.5.4-1~deb13u1","3.5.4-1~deb13u2","3.5.5-1","3.5.5-1~deb13u1","3.5.5-1~deb13u2","3.5.6-1~deb13u1","3.5.6-1~deb13u2","3.5.7-1~deb13u1","3.5.7-1~deb13u2","3.5.7-1~deb13u3","3.6.0-1","3.6.0-2","3.6.0~~alpha1-1","3.6.0~~beta1-1","3.6.1-1","3.6.1-2","3.6.1-3","3.6.2-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34183.json"},"ecosystem_specific":{"urgency":"not yet assigned"}}],"modified":"2026-10-01T03:03:11.056752612Z","provider":"osv","references":["https://security-tracker.debian.org/tracker/CVE-2026-34183"]},"related_cves":[],"security_relevant":true,"severity_evidence":null},"group_id":"advisory:49e4f21a-645f-43c1-aba6-a0506ebd971a","priority":{"reasons":["unrated_security_fix"],"severity":"unknown","linked_cves":[],"fix_available":true,"known_exploited":false,"publisher_severity":"unknown"},"revision":1,"source_id":"core-osv","source_url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-34183","advisory_id":"49e4f21a-645f-43c1-aba6-a0506ebd971a","event_types":["advisory"],"published_at":"2026-10-25T16:51:41.129657+00:00","technologies":["core-osv","openssl"],"context_update":false,"extraction_method":"structured","source_published_at":"2026-06-09T17:17:05+00:00","detail_url":"/events/56851"},"members":[{"id":56851,"cve_ids":[],"payload":{"kind":"advisory","title":"DEBIAN-CVE-2026-34183","summary":"Issue summary: Remote peer may exhaust heap memory of the QUIC server or client by flooding it with packets containing PATH_CHALLENGE frames. Impact summary: A malicious remote peer can cause an unbounded memory allocation which can lead to an abnormal termination of the application acting as a QUIC client or server and a Denial of Service. A remote peer may exhaust heap memory by flooding the local QUIC stack with PATH_CHALLENGE frames. The local QUIC stack allocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives. The allocated PATH_RESPONSE frame gets freed only when the remote peer acknowledges reception of the PATH_RESPONSE frame which will not be done by a malicious peer. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue. The QUIC stack is outside of OpenSSL FIPS module boundary.","evidence":"osv:DEBIAN-CVE-2026-34183","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.6-1~deb13u2","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/0/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.2-1","evidence":"/affected/0/versions"},{"value":"3.5.3-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.5-1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/0/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/0/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.3-1","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/1/versions"},{"value":"3.6.0-1","evidence":"/affected/1/versions"},{"value":"3.6.0-2","evidence":"/affected/1/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/1/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/1/versions"},{"value":"3.6.1-1","evidence":"/affected/1/versions"},{"value":"3.6.1-2","evidence":"/affected/1/versions"},{"value":"3.6.1-3","evidence":"/affected/1/versions"},{"value":"3.6.2-1","evidence":"/affected/1/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-34183","aliases":["DEBIAN-CVE-2026-34183"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.6-1~deb13u2"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=trixie","ecosystem":"Debian:13"},"versions":["3.5.1-1","3.5.1-1+deb13u1","3.5.2-1","3.5.3-1","3.5.4-1","3.5.4-1~deb13u1","3.5.4-1~deb13u2","3.5.5-1","3.5.5-1~deb13u1","3.5.5-1~deb13u2","3.5.6-1~deb13u1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34183.json"},"ecosystem_specific":{"urgency":"not yet assigned"}},{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.3-1"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=forky","ecosystem":"Debian:14"},"versions":["3.5.1-1","3.5.2-1","3.5.3-1","3.5.4-1","3.5.4-1~deb13u1","3.5.4-1~deb13u2","3.5.5-1","3.5.5-1~deb13u1","3.5.5-1~deb13u2","3.5.6-1~deb13u1","3.5.6-1~deb13u2","3.5.7-1~deb13u1","3.5.7-1~deb13u2","3.5.7-1~deb13u3","3.6.0-1","3.6.0-2","3.6.0~~alpha1-1","3.6.0~~beta1-1","3.6.1-1","3.6.1-2","3.6.1-3","3.6.2-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34183.json"},"ecosystem_specific":{"urgency":"not yet assigned"}}],"modified":"2026-10-01T03:03:11.056752612Z","provider":"osv","references":["https://security-tracker.debian.org/tracker/CVE-2026-34183"]},"related_cves":[],"security_relevant":true,"severity_evidence":null},"group_id":"advisory:49e4f21a-645f-43c1-aba6-a0506ebd971a","priority":{"reasons":["unrated_security_fix"],"severity":"unknown","linked_cves":[],"fix_available":true,"known_exploited":false,"publisher_severity":"unknown"},"revision":1,"source_id":"core-osv","source_url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-34183","advisory_id":"49e4f21a-645f-43c1-aba6-a0506ebd971a","event_types":["advisory"],"published_at":"2026-10-25T16:51:41.129657+00:00","technologies":["core-osv","openssl"],"context_update":false,"extraction_method":"structured","source_published_at":"2026-06-09T17:17:05+00:00","detail_url":"/events/56851"}]}},{"id":57229,"cve_ids":[],"payload":{"kind":"advisory","title":"DEBIAN-CVE-2026-31790","summary":"Issue summary: Applications using RSASVE key encapsulation to establish a secret encryption key can send contents of an uninitialized memory buffer to a malicious peer. Impact summary: The uninitialized buffer might contain sensitive data from the previous execution of the application process which leads to sensitive data leakage to an attacker. RSA_public_encrypt() returns the number of bytes written on success and -1 on error. The affected code tests only whether the return value is non-zero. As a result, if RSA encryption fails, encapsulation can still return success to the caller, set the output lengths, and leave the caller to use the contents of the ciphertext buffer as if a valid KEM ciphertext had been produced. If applications use EVP_PKEY_encapsulate() with RSA/RSASVE on an attacker-supplied invalid RSA public key without first validating that key, then this may cause stale or uninitialized contents of the caller-provided ciphertext buffer to be disclosed to the attacker in place of the KEM ciphertext. As a workaround calling EVP_PKEY_public_check() or EVP_PKEY_public_check_quick() before EVP_PKEY_encapsulate() will mitigate the issue. The FIPS modules in 3.6, 3.5, 3.4, 3.3, 3.1 and 3.0 are affected by this issue.","evidence":"osv:DEBIAN-CVE-2026-31790","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.0.19-1~deb12u2","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.0.10-1","evidence":"/affected/0/versions"},{"value":"3.0.10-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.12-1","evidence":"/affected/0/versions"},{"value":"3.0.12-2","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.15-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.16-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u3","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.9-1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"}]},{"name":{"value":"openssl","evidence":"/affected/2/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.2-1","evidence":"/affected/2/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/2/versions"},{"value":"3.5.2-1","evidence":"/affected/2/versions"},{"value":"3.5.3-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.5-1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/2/versions"},{"value":"3.6.0-1","evidence":"/affected/2/versions"},{"value":"3.6.0-2","evidence":"/affected/2/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/2/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-2","evidence":"/affected/2/versions"},{"value":"3.6.1-3","evidence":"/affected/2/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-31790","aliases":["DEBIAN-CVE-2026-31790"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.19-1~deb12u2"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=bookworm","ecosystem":"Debian:12"},"versions":["3.0.10-1","3.0.10-1~deb12u1","3.0.11-1","3.0.11-1~deb12u1","3.0.11-1~deb12u2","3.0.12-1","3.0.12-2","3.0.13-1~deb12u1","3.0.13-1~deb12u2","3.0.14-1~deb12u1","3.0.14-1~deb12u2","3.0.15-1~deb12u1","3.0.16-1~deb12u1","3.0.17-1~deb12u1","3.0.17-1~deb12u2","3.0.17-1~deb12u3","3.0.18-1~deb12u1","3.0.18-1~deb12u2","3.0.19-1~deb12u1","3.0.9-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-31790.json"},"ecosystem_specific":{"urgency":"not 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summary: Applications using RSASVE key encapsulation to establish a secret encryption key can send contents of an uninitialized memory buffer to a malicious peer. Impact summary: The uninitialized buffer might contain sensitive data from the previous execution of the application process which leads to sensitive data leakage to an attacker. RSA_public_encrypt() returns the number of bytes written on success and -1 on error. The affected code tests only whether the return value is non-zero. As a result, if RSA encryption fails, encapsulation can still return success to the caller, set the output lengths, and leave the caller to use the contents of the ciphertext buffer as if a valid KEM ciphertext had been produced. If applications use EVP_PKEY_encapsulate() with RSA/RSASVE on an attacker-supplied invalid RSA public key without first validating that key, then this may cause stale or uninitialized contents of the caller-provided ciphertext buffer to be disclosed to the attacker in place of the KEM ciphertext. As a workaround calling EVP_PKEY_public_check() or EVP_PKEY_public_check_quick() before EVP_PKEY_encapsulate() will mitigate the issue. The FIPS modules in 3.6, 3.5, 3.4, 3.3, 3.1 and 3.0 are affected by this issue.","evidence":"osv:DEBIAN-CVE-2026-31790","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.0.19-1~deb12u2","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.0.10-1","evidence":"/affected/0/versions"},{"value":"3.0.10-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.12-1","evidence":"/affected/0/versions"},{"value":"3.0.12-2","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.15-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.16-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u3","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.9-1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"}]},{"name":{"value":"openssl","evidence":"/affected/2/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.2-1","evidence":"/affected/2/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/2/versions"},{"value":"3.5.2-1","evidence":"/affected/2/versions"},{"value":"3.5.3-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.5-1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/2/versions"},{"value":"3.6.0-1","evidence":"/affected/2/versions"},{"value":"3.6.0-2","evidence":"/affected/2/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/2/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-2","evidence":"/affected/2/versions"},{"value":"3.6.1-3","evidence":"/affected/2/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-31790","aliases":["DEBIAN-CVE-2026-31790"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.19-1~deb12u2"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=bookworm","ecosystem":"Debian:12"},"versions":["3.0.10-1","3.0.10-1~deb12u1","3.0.11-1","3.0.11-1~deb12u1","3.0.11-1~deb12u2","3.0.12-1","3.0.12-2","3.0.13-1~deb12u1","3.0.13-1~deb12u2","3.0.14-1~deb12u1","3.0.14-1~deb12u2","3.0.15-1~deb12u1","3.0.16-1~deb12u1","3.0.17-1~deb12u1","3.0.17-1~deb12u2","3.0.17-1~deb12u3","3.0.18-1~deb12u1","3.0.18-1~deb12u2","3.0.19-1~deb12u1","3.0.9-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-31790.json"},"ecosystem_specific":{"urgency":"not 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assigned"}}],"modified":"2026-10-01T03:03:10.109596007Z","provider":"osv","references":["https://security-tracker.debian.org/tracker/CVE-2026-31790"]},"related_cves":[],"security_relevant":true,"severity_evidence":null},"group_id":"advisory:5d8ce709-16d6-401e-b7f4-593a1272c58a","priority":{"reasons":["unrated_security_fix"],"severity":"unknown","linked_cves":[],"fix_available":true,"known_exploited":false,"publisher_severity":"unknown"},"revision":1,"source_id":"core-osv","source_url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-31790","advisory_id":"5d8ce709-16d6-401e-b7f4-593a1272c58a","event_types":["advisory"],"published_at":"2026-10-25T16:49:23.325727+00:00","technologies":["core-osv","openssl"],"context_update":false,"extraction_method":"structured","source_published_at":"2026-04-07T22:16:21.77+00:00","detail_url":"/events/56741"},"members":[{"id":56741,"cve_ids":[],"payload":{"kind":"advisory","title":"DEBIAN-CVE-2026-31790","summary":"Issue summary: Applications using RSASVE key encapsulation to establish a secret encryption key can send contents of an uninitialized memory buffer to a malicious peer. Impact summary: The uninitialized buffer might contain sensitive data from the previous execution of the application process which leads to sensitive data leakage to an attacker. RSA_public_encrypt() returns the number of bytes written on success and -1 on error. The affected code tests only whether the return value is non-zero. As a result, if RSA encryption fails, encapsulation can still return success to the caller, set the output lengths, and leave the caller to use the contents of the ciphertext buffer as if a valid KEM ciphertext had been produced. If applications use EVP_PKEY_encapsulate() with RSA/RSASVE on an attacker-supplied invalid RSA public key without first validating that key, then this may cause stale or uninitialized contents of the caller-provided ciphertext buffer to be disclosed to the attacker in place of the KEM ciphertext. As a workaround calling EVP_PKEY_public_check() or EVP_PKEY_public_check_quick() before EVP_PKEY_encapsulate() will mitigate the issue. The FIPS modules in 3.6, 3.5, 3.4, 3.3, 3.1 and 3.0 are affected by this issue.","evidence":"osv:DEBIAN-CVE-2026-31790","products":[{"name":{"value":"openssl","evidence":"/affected/0/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.0.19-1~deb12u2","evidence":"/affected/0/ranges"}],"affected_versions":[{"value":"3.0.10-1","evidence":"/affected/0/versions"},{"value":"3.0.10-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.11-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.12-1","evidence":"/affected/0/versions"},{"value":"3.0.12-2","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.13-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.14-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.15-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.16-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.17-1~deb12u3","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.18-1~deb12u2","evidence":"/affected/0/versions"},{"value":"3.0.19-1~deb12u1","evidence":"/affected/0/versions"},{"value":"3.0.9-1","evidence":"/affected/0/versions"}]},{"name":{"value":"openssl","evidence":"/affected/1/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.5.5-1~deb13u2","evidence":"/affected/1/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/1/versions"},{"value":"3.5.1-1+deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.2-1","evidence":"/affected/1/versions"},{"value":"3.5.3-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/1/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/1/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/1/versions"}]},{"name":{"value":"openssl","evidence":"/affected/2/package/name"},"prerequisites":[],"fixed_versions":[{"value":"3.6.2-1","evidence":"/affected/2/ranges"}],"affected_versions":[{"value":"3.5.1-1","evidence":"/affected/2/versions"},{"value":"3.5.2-1","evidence":"/affected/2/versions"},{"value":"3.5.3-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.4-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.5-1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.5-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.6-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u1","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u2","evidence":"/affected/2/versions"},{"value":"3.5.7-1~deb13u3","evidence":"/affected/2/versions"},{"value":"3.6.0-1","evidence":"/affected/2/versions"},{"value":"3.6.0-2","evidence":"/affected/2/versions"},{"value":"3.6.0~~alpha1-1","evidence":"/affected/2/versions"},{"value":"3.6.0~~beta1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-1","evidence":"/affected/2/versions"},{"value":"3.6.1-2","evidence":"/affected/2/versions"},{"value":"3.6.1-3","evidence":"/affected/2/versions"}]}],"severity":"unknown","structured":{"id":"DEBIAN-CVE-2026-31790","aliases":["DEBIAN-CVE-2026-31790"],"metrics":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}],"affected":[{"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.19-1~deb12u2"}]}],"package":{"name":"openssl","purl":"pkg:deb/debian/openssl?arch=source&distro=bookworm","ecosystem":"Debian:12"},"versions":["3.0.10-1","3.0.10-1~deb12u1","3.0.11-1","3.0.11-1~deb12u1","3.0.11-1~deb12u2","3.0.12-1","3.0.12-2","3.0.13-1~deb12u1","3.0.13-1~deb12u2","3.0.14-1~deb12u1","3.0.14-1~deb12u2","3.0.15-1~deb12u1","3.0.16-1~deb12u1","3.0.17-1~deb12u1","3.0.17-1~deb12u2","3.0.17-1~deb12u3","3.0.18-1~deb12u1","3.0.18-1~deb12u2","3.0.19-1~deb12u1","3.0.9-1"],"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-31790.json"},"ecosystem_specific":{"urgency":"not 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EnvelopedData message with KeyTransportRecipientInfo a NULL pointer dereference can happen. Impact summary: Applications that process attacker-controlled CMS data may crash before authentication or cryptographic operations occur resulting in Denial of Service. When a CMS EnvelopedData message that uses KeyTransportRecipientInfo with RSA-OAEP encryption is processed, the optional parameters field of RSA-OAEP SourceFunc algorithm identifier is examined without checking for its presence. This results in a NULL pointer dereference if the field is missing. Applications and services that call CMS_decrypt() on untrusted input (e.g., S/MIME processing or CMS-based protocols) are vulnerable. The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module 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large OCTET STRING value to a hexadecimal string leads to a heap buffer overflow on 32 bit platforms. Impact summary: A heap buffer overflow may lead to a crash or possibly an attacker controlled code execution or other undefined behavior. If an attacker can supply a crafted X.509 certificate with an excessively large OCTET STRING value in extensions such as the Subject Key Identifier (SKID) or Authority Key Identifier (AKID) which are being converted to hex, the size of the buffer needed for the result is calculated as multiplication of the input length by 3. On 32 bit platforms, this multiplication may overflow resulting in the allocation of a smaller buffer and a heap buffer overflow. Applications and services that print or log contents of untrusted X.509 certificates are vulnerable to this issue. As the certificates would have to have sizes of over 1 Gigabyte, printing or logging such certificates is a fairly unlikely operation and only 32 bit platforms are affected, this issue was assigned Low severity. The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module 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clients performing DANE TLSA-based server authentication, when paired with uncommon server DANE TLSA records, may result in a use-after-free and/or double-free on the client side. Impact summary: A use after free can have a range of potential consequences such as the corruption of valid data, crashes or execution of arbitrary code. However, the issue only affects clients that make use of TLSA records with both the PKIX-TA(0/PKIX-EE(1) certificate usages and the DANE-TA(2) certificate usage. By far the most common deployment of DANE is in SMTP MTAs for which RFC7672 recommends that clients treat as 'unusable' any TLSA records that have the PKIX certificate usages. These SMTP (or other similar) clients are not vulnerable to this issue. Conversely, any clients that support only the PKIX usages, and ignore the DANE-TA(2) usage are also not vulnerable. The client would also need to be communicating with a server that publishes a TLSA RRset with both types of TLSA records. No FIPS modules are affected by this issue, the problem code is outside the FIPS module 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