Heap-based Buffer Overflow Affecting python311-cryptography package, versions <41.0.3-150400.16.25.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.17% (6th percentile)

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  • Snyk IDSNYK-SLES154-PYTHON311CRYPTOGRAPHY-17991522
  • published16 Jul 2026
  • disclosed15 Jul 2026

Introduced: 15 Jul 2026

CVE-2026-44662  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 python311-cryptography to version 41.0.3-150400.16.25.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python311-cryptography package and not the python311-cryptography package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1