CVE-2020-12400
nss - security update
4.7
MEDIUM
CVSS 3.1
EPSS 0.15%
Description
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.
How to fix CVE-2020-12400
To remediate CVE-2020-12400, upgrade the affected package to a fixed version below.
- Alpine/nss—upgrade to 3.55-r0 or later
- —upgrade to 2:3.55-1 or later
- —upgrade to 2:3.42.1-1+deb10u6 or later
Is CVE-2020-12400 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 3.55-r0
- from 0, < 2:3.55-1
- from 0, < 2:3.42.1-1+deb10u6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |