CVE-2020-12401

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.7 MEDIUM
LOCAL
HIGH
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
mozillaCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 21%
VendorProductVersion
mozillafirefox
𝑥
< 80.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
firefox
sid
132.0.1-1
fixed
nss
bullseye
2:3.61-1+deb11u3
fixed
bullseye (security)
2:3.61-1+deb11u4
fixed
bookworm
2:3.87.1-1
fixed
sid
2:3.105-2
fixed
trixie
2:3.105-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
firefox
focal
Fixed 80.0+build2-0ubuntu0.20.04.1
released
bionic
Fixed 80.0+build2-0ubuntu0.18.04.1
released
xenial
Fixed 80.0+build2-0ubuntu0.16.04.1
released
trusty
dne
nss
focal
Fixed 2:3.49.1-1ubuntu1.4
released
bionic
Fixed 2:3.35-2ubuntu2.11
released
xenial
Fixed 2:3.28.4-0ubuntu0.16.04.13
released
trusty
Fixed 2:3.28.4-0ubuntu0.14.04.5+esm7
released
Common Weakness Enumeration
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/
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/