{"schema_version":"1","data":[{"id":23055,"advisory_id":"8d7a58db-2db2-42f8-b860-9c0594f26552","revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2023-0286","source_published_at":"2023-02-08T19:01:50.514+00:00","published_at":"2026-10-25T06:12:34.435555+00:00","extraction_method":"structured","technologies":["core-cve","openssl"],"cve_ids":["CVE-2023-0286"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"X.400 address type confusion in X.509 GeneralName","summary":"There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but the public structure definition for GENERAL_NAME incorrectly specified the type of the x400Address field as ASN1_TYPE. This field is subsequently interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an ASN1_STRING. When CRL checking is enabled (i.e. the application sets the X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass arbitrary pointers to a memcmp call, enabling them to read memory contents or enact a denial of service. In most cases, the attack requires the attacker to provide both the certificate chain and CRL, neither of which need to have a valid signature. If the attacker only controls one of these inputs, the other input must already contain an X.400 address as a CRL distribution point, which is uncommon. As such, this vulnerability is most likely to only affect applications which have implemented their own functionality for retrieving CRLs over a network.","evidence":"cve:CVE-2023-0286","products":[{"name":{"value":"OpenSSL","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2023-0286","aliases":["CVE-2023-0286"],"metrics":[{"other":{"type":"https://www.openssl.org/policies/secpolicy.html","content":{"text":"High"}},"format":"other"}],"affected":[{"vendor":"OpenSSL","product":"OpenSSL","versions":[{"status":"affected","version":"3.0.0","lessThan":"3.0.8","versionType":"semver"},{"status":"affected","version":"1.1.1","lessThan":"1.1.1t","versionType":"custom"},{"status":"affected","version":"1.0.2","lessThan":"1.0.2zg","versionType":"custom"}],"defaultStatus":"unaffected"}],"modified":"2026-10-14T19:23:44.227Z","provider":"cve","references":["https://www.openssl.org/news/secadv/20230207.txt","https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2f7530077e0ef79d98718138716bc51ca0cad658","https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=2c6c9d439b484e1ba9830d8454a34fa4f80fdfe9","https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=fd2af07dc083a350c959147097003a14a5e8ac4d","https://ftp.openbsd.org/pub/OpenBSD/patches/7.2/common/018_x509.patch.sig","https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.6.2-relnotes.txt","https://security.gentoo.org/glsa/202402-08"],"provider_metadata":{"adp":[{"title":"CVE 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