CVE-2024-37880
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-37880
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-37880.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-37880
- Published
- 2024-06-10T02:15:47Z
- Modified
- 2025-01-08T16:11:34.619675Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
-
- https://github.com/antoonpurnal/clangover
- https://pqshield.com/pqshield-plugs-timing-leaks-in-kyber-ml-kem-to-improve-pqc-implementation-maturity/
- https://twitter.com/purnaltoon/status/1797644696568959476
- https://github.com/pq-crystals/kyber/commit/9b8d30698a3e7449aeb34e62339d4176f11e3c6c
- https://news.ycombinator.com/item?id=40577486