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GHSA-phqj-4mhp-q6mq

rust-openssl: Potential out-of-bounds write in `CipherCtxRef::cipher_update_inplace` for AES-KW-PAD ciphers

Source: GitHub Advisory Database (reviewed) Moderate CVE-2026-45784

Packages

EcosystemPackageAffectedFixed in
crates.io openssl >= 0.10.50, < 0.10.80 0.10.80

Details

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

`CipherCtxRef::cipher_update_inplace` 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 method was missed in the fix for GHSA-xv59-967r-8726

References

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