CVEvulnerability
CVE-2020-12401
4.7 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-10-08
- Last modified
- 2026-08-19
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 4.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 1.9 LOW — AV:L/AC:M/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-203
Description
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 configurations
• mozilla firefox (< 80.0)
• mozilla firefox mobile (< 80.0)
Related
Weakness · CWE (1)
- CWE-203 Observable Discrepancy weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1631573 Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html lists.debian.org
- https://www.mozilla.org/security/advisories/mfsa2020-36/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-39/ Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1631573 Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html lists.debian.org
- https://www.mozilla.org/security/advisories/mfsa2020-36/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-39/ Vendor Advisory