High severity7.5NVD Advisory· Published Jun 10, 2024· Updated Jun 17, 2026
CVE-2024-37880
CVE-2024-37880
Description
The Kyber reference implementation before 9b8d306, when compiled by LLVM Clang through 18.x with some common optimization options, has a timing side channel that allows attackers to recover an ML-KEM 512 secret key in minutes. This occurs because poly_frommsg in poly.c does not prevent Clang from emitting a vulnerable secret-dependent branch.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4cpe:2.3:a:pq-crystals:kyber:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:pq-crystals:kyber:*:*:*:*:*:*:*:*range: <2024-06-03
- (no CPE)range: <9b8d306
- Kyber/Kyber reference implementationdescription
Patches
Vulnerability mechanics
References
4- github.com/pq-crystals/kyber/commit/9b8d30698a3e7449aeb34e62339d4176f11e3c6cnvdPatch
- pqshield.com/pqshield-plugs-timing-leaks-in-kyber-ml-kem-to-improve-pqc-implementation-maturity/nvdExploitThird Party Advisory
- twitter.com/purnaltoon/status/1797644696568959476nvdExploit
- news.ycombinator.com/itemnvdNot Applicable
News mentions
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