Medium
rust-openssl — security advisory
rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.0 to before 0.10.79, CipherCtxRef::cipher_update, CipherCtxRef::cipher_update_vec, and symm::Crypter::update incorrectly sized output buffers when used with AES key-wrap-with-padding ciphers (EVP_aes_{128,192,256}_wrap_pad). For a non-multiple-of-8 input, OpenSSL writes up to 7 bytes past the end of the caller's buffer or Vec, producing attacker-controllable heap corruption when the plaintext length is attacker-influenced. This only impacts users using AES key-wrap-with-padding ciphers. This vulnerability is fixed in 0.10.79.
- Products
- rust-openssl
- Affected versions
- 0.10.23-1, 0.10.23-1ubuntu0.1~esm1, 0.10.29-1, 0.10.36-1, 0.10.36-1ubuntu0.1~esm1, 0.10.45-1, 0.10.57-1, 0.10.57-1ubuntu0.1~esm1, 0.10.70-1, 0.10.72-1, 0.10.73-1, 0.10.81-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-44662
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:13 UTC · Revision 1
Source evidence
rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.0 to before 0.10.79, CipherCtxRef::cipher_update, CipherCtxRef::cipher_update_vec, and symm::Crypter::update incorrectly sized output buffers when used with AES key-wrap-with-padding ciphers (EVP_aes_{128,192,256}_wrap_pad). For a non-multiple-of-8 input, OpenSSL writes up to 7 bytes past the end of the caller's buffer or Vec, producing attacker-controllable heap corruption when the plaintext length is attacker-influenced. This only impacts users using AES key-wrap-with-padding ciphers. This vulnerability is fixed in 0.10.79.
osv:UBUNTU-CVE-2026-44662
rust-openssl
Fixed versions: Not specified
rust-openssl
Fixed versions: Not specified
rust-openssl
Fixed versions: Not specified
rust-openssl
Fixed versions: Not specified
rust-openssl
Fixed versions: Not specified
rust-openssl
Fixed versions: Not specified
Complete source record
{
"id": "eceabf7605ea0932470be8586c6c51b3012269a5d861b71140e22b2649138e82",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-44662",
"method": "structured",
"payload": {
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"title": "UBUNTU-CVE-2026-44662",
"summary": "rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.0 to before 0.10.79, CipherCtxRef::cipher_update, CipherCtxRef::cipher_update_vec, and symm::Crypter::update incorrectly sized output buffers when used with AES key-wrap-with-padding ciphers (EVP_aes_{128,192,256}_wrap_pad). For a non-multiple-of-8 input, OpenSSL writes up to 7 bytes past the end of the caller's buffer or Vec, producing attacker-controllable heap corruption when the plaintext length is attacker-influenced. This only impacts users using AES key-wrap-with-padding ciphers. This vulnerability is fixed in 0.10.79.",
"evidence": "osv:UBUNTU-CVE-2026-44662",
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"modified": "2026-10-17T12:58:21.153870119Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2026-44662",
"https://www.cve.org/CVERecord?id=CVE-2026-44662",
"https://github.com/rust-openssl/rust-openssl/security/advisories/GHSA-xv59-967r-8726"
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"source_id": "core-osv",
"document_id": 358584,
"published_at": "2026-05-14T21:16:00+00:00"
}