MEDIUM
GHSA-phqj-4mhp-q6mq
rust-openssl: Potential out-of-bounds write in `CipherCtxRef::cipher_update_inplace` for AES-KW-PAD ciphers
Details
`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
Are you affected?
Enter the version of the package you're using.
Affected packages
crates.io/openssl
Introduced in:
0.10.50Fixed in: 0.10.80Upgrade openssl to 0.10.80 or newer (ecosystem crates.io).