CVE-2024-36405 Affecting liboqs package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published15 Jun 2024
- disclosed10 Jun 2024
Introduced: 10 Jun 2024
CVE-2024-36405 (opens in a new tab)How to fix?
There is no fixed version for Debian:unstable liboqs.
NVD Description
Note: Versions mentioned in the description apply only to the upstream liboqs package and not the liboqs package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
liboqs is a C-language cryptographic library that provides implementations of post-quantum cryptography algorithms. A control-flow timing lean has been identified in the reference implementation of the Kyber key encapsulation mechanism when it is compiled with Clang 15-18 for -Os, -O1, and other compilation options. A proof-of-concept local attack on the reference implementation leaks the entire ML-KEM 512 secret key in ~10 minutes using end-to-end decapsulation timing measurements. The issue has been fixed in version 0.10.1. As a possible workaround, some compiler options may produce vectorized code that does not leak secret information, however relying on these compiler options as a workaround may not be reliable.
References
- https://security-tracker.debian.org/tracker/CVE-2024-36405
- https://github.com/open-quantum-safe/liboqs/blob/7eecda6095c003ddded7175a1ffdf35a2ce63ed5/src/kem/kyber/pqcrystals-kyber_kyber512_ref/poly.c#L166
- https://github.com/open-quantum-safe/liboqs/commit/982c762c242ef549c914891b47bf6e0ed6321f91
- https://github.com/open-quantum-safe/liboqs/security/advisories/GHSA-f2v9-5498-2vpp
- https://github.com/pq-crystals/kyber/commit/9b8d30698a3e7449aeb34e62339d4176f11e3c6c