VULNERABILITY INTELLIGENCE
CVE-2024-37880
CVSS score7.5 HIGH
EPSS probability0.70%
CISA KEVNot currently listed
Published2024-06-10
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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.
Weakness classification
- nvd@nist.gov: CWE-203
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-203
Primary references
- cve@mitre.org — Exploit
- cve@mitre.org — Patch
- cve@mitre.org — Not Applicable
- cve@mitre.org — Exploit, Third Party Advisory
- cve@mitre.org — Exploit
- af854a3a-2127-422b-91ae-364da2661108 — Exploit
- af854a3a-2127-422b-91ae-364da2661108 — Patch
- af854a3a-2127-422b-91ae-364da2661108 — Not Applicable
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit