Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 80.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1631573Issue TrackingPermissions RequiredVendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html
- 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=1631573Issue TrackingPermissions RequiredVendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html
- https://www.mozilla.org/security/advisories/mfsa2020-36/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2020-39/Vendor Advisory
FAQ
What is CVE-2020-12401?
CVE-2020-12401 is a vulnerability with a CVSS score of 4.7 (MEDIUM). 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 ...
How severe is CVE-2020-12401?
CVE-2020-12401 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-12401?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox.