CVE-2020-12400

low-risk

Published 2020-10-08

When converting coordinates from projective to affine, the modular inversion was not performed in constant time, resulting in a possible timing-based side channel attack. This vulnerability affects Firefox < 80 and Firefox for Android < 80.

Do I need to act?

0.15% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 4.7/10 Medium

LOCAL / HIGH complexity

Affected Products (2)

Firefox

Affected Vendors

Mozilla

References (8)

Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1623116

https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-36/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-39/

Issue Tracking https://bugzilla.mozilla.org/show_bug.cgi?id=1623116

https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-36/

Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2020-39/

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low-risk

Severity 12/34 · Low

Exploitability 1/34 · Minimal

Exposure 7/34 · Low