Description

liboqs is a C-language cryptographic library that provides implementations of post-quantum cryptography algorithms. A correctness error has been identified in the reference implementation of the HQC key encapsulation mechanism. Due to an indexing error, part of the secret key is incorrectly treated as non-secret data. This results in an incorrect shared secret value being returned when the decapsulation function is called with a malformed ciphertext. This vulnerability is fixed in 0.12.0.

Classification

CVE ID: CVE-2024-54137

CVSS Base Severity: HIGH

CVSS Base Score: 7.4

Affected Products

Vendor: open-quantum-safe

Product: liboqs

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 11.44% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://github.com/open-quantum-safe/liboqs/security/advisories/GHSA-gpf4-vrrw-r8v7
https://github.com/open-quantum-safe/liboqs/commit/cce1bfde4e52c524b087b9687020d283fbde0f24

Timeline