CVE-2020-12401

medium

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.

References

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

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

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

https://bugzilla.mozilla.org/show_bug.cgi?id=1631573

Details

Source: Mitre, NVD

Published: 2020-10-08

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 1.9

Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:N/A:N

Severity: Low

CVSS v3

Base Score: 4.7

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Severity: Medium

EPSS

EPSS: 0.00066