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GHSA-xv59-967r-8726

rust-openssl vulnerable to heap buffer overflow when encrypting with AES key-wrap-with-padding

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-44662

Packages

EcosystemPackageAffectedFixed in
crates.io openssl >= 0.10.0, < 0.10.79 0.10.79

Details

As written in the advisory (Markdown source, shown as plain text).

`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.

References

External links from the advisory. They lead to third-party sites.