CVE-2020-12401

EPSS 0.3%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

08 Oct 2020Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

During ECDSA signature generation, padding applied in the nonce designed to ensure constant-time scalar multiplication was removed, resulting in variable-time execution dependent on secret data. This vulnerability affects Firefox < 80 and Firefox for Android < 80.

Affected products

Mozilla · Firefox Mozilla · Firefox for Android

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1631573 https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html https://www.mozilla.org/security/advisories/mfsa2020-36/https://www.mozilla.org/security/advisories/mfsa2020-39/