CVE-2024-13176Timing side-channel in ECDSA signature computation

Beschreibung

Issue summary: A timing side-channel which could potentially allow recovering the private key exists in the ECDSA signature computation. Impact summary: A timing side-channel in ECDSA signature computations could allow recovering the private key by an attacker. However, measuring the timing would require either local access to the signing application or a very fast network connection with low latency. There is a timing signal of around 300 nanoseconds when the top word of the inverted ECDSA nonce value is zero. This can happen with significant probability only for some of the supported elliptic curves. In particular the NIST P-521 curve is affected. To be able to measure this leak, the attacker process must either be located in the same physical computer or must have a very fast network connection with low latency. For that reason the severity of this vulnerability is Low. The FIPS modules in 3.4, 3.3, 3.2, 3.1 and 3.0 are affected by this issue.

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Referenzen und Patches

• OpenSSL Advisory vendor-advisoryVendor Advisory
• 3.4.1 git commit patchPatch
• 3.3.3 git commit patchPatch
• 3.2.4 git commit patchPatch
• 3.1.8 git commit patchPatch
• 3.0.16 git commit patchPatch
• 1.1.1zb git commit patchPermissions Required
• 1.0.2zl git commit patchPermissions Required
• http://www.openwall.com/lists/oss-security/2025/01/20/2 Mailing ListThird Party Advisory
• https://lists.debian.org/debian-lts-announce/2025/05/msg00028.html Mailing ListThird Party Advisory
• https://security.netapp.com/advisory/ntap-20250124-0005/ Third Party Advisory
• https://security.netapp.com/advisory/ntap-20250418-0010/ Third Party Advisory
• https://security.netapp.com/advisory/ntap-20250502-0006/ Third Party Advisory