CVE-2024-37305 – Buffer overflow in deserialization in oqs-provider

https://notcve.org/view.php?id=CVE-2024-37305

oqs-provider is a provider for the OpenSSL 3 cryptography library that adds support for post-quantum cryptography in TLS, X.509, and S/MIME using post-quantum algorithms from liboqs. Flaws have been identified in the way oqs-provider handles lengths decoded with DECODE_UINT32 at the start of serialized hybrid (traditional + post-quantum) keys and signatures. Unchecked length values are later used for memory reads and writes; malformed input can lead to crashes or information leakage. Handling of plain/non-hybrid PQ key operation is not affected. This issue has been patched in in v0.6.1. • https://github.com/open-quantum-safe/oqs-provider/pull/416 https://github.com/open-quantum-safe/oqs-provider/security/advisories/GHSA-pqvr-5cr8-v6fx • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-130: Improper Handling of Length Parameter Inconsistency CWE-190: Integer Overflow or Wraparound CWE-680: Integer Overflow to Buffer Overflow CWE-805: Buffer Access with Incorrect Length Value •