Vulnerability GHSA-xv59-967r-8726
Medium Risk
MEDIUM RISK
CVSS Score: 6.0
Score Range: 4.0–6.9
Medium severity vulnerabilities (CVSS 4.0–6.9). Important issues that meaningfully reduce security confidence.
6 months ago
May 07, 2026 at 10:33 PM UTC
rust-openssl vulnerable to heap buffer overflow when encrypting with AES key-wrap-with-padding
0.10.0 - 0.10.78
0.10.0 - 0.10.78
Summary
rust-openssl vulnerable to heap buffer overflow when encrypting with AES key-wrap-with-padding
Details
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.
Related Vulnerabilities
Other vulnerabilities affecting the same packages
Medium Risk
5 months ago
rust-openssl: Potential out-of-bounds write in `CipherCtxRef::cipher_update_inplace` for AES-KW-PAD ciphers
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0.10.50 - 0.10.79 GHSA-phqj-4mhp-q6mq
High Risk
6 months ago
rust-openssl has undefined behavior in X509Ref::ocsp_responders for certificates with non-UTF-8 OCSP URLs
0.9.7 - 0.10.78 GHSA-xp3w-r5p5-63rr
0.9.7 - 0.10.78 GHSA-xp3w-r5p5-63rr
High Risk
6 months ago
rust-openssl: Deriver::derive and PkeyCtxRef::derive can overflow short buffers on OpenSSL 1.1.1
0.10.0 - 0.10.77 GHSA-pqf5-4pqq-29f5
0.10.0 - 0.10.77 GHSA-pqf5-4pqq-29f5
Low Risk
6 months ago
rust-opennssl has an Out-of-bounds read in PEM password callback when returning an oversized length
0.9.0 - 0.10.77 GHSA-xmgf-hq76-4vx2
0.9.0 - 0.10.77 GHSA-xmgf-hq76-4vx2
High Risk
6 months ago
rust-openssl has incorrect bounds assertion in aes key wrap
0.10.24 - 0.10.77 GHSA-8c75-8mhr-p7r9
0.10.24 - 0.10.77 GHSA-8c75-8mhr-p7r9
Impacted packages
Timeline
Published
6 months ago
May 07, 2026 at 10:33 PM UTC
Fixed (0.10.79)
6 months ago
May 04, 2026 at 12:19 AM UTC
Last Modified
2 months ago
September 10, 2026 at 03:51 AM UTC