CVE-2020-6829
5.3
MEDIUM
CVSS 3.1
EPSS 0.58%
Description
When performing EC scalar point multiplication, the wNAF point multiplication algorithm was used; which leaked partial information about the nonce used during signature generation. Given an electro-magnetic trace of a few signature generations, the private key could have been computed. This vulnerability affects Firefox < 80 and Firefox for Android < 80.
How to fix CVE-2020-6829
To remediate CVE-2020-6829, upgrade the affected package to a fixed version below.
- —upgrade to 3.55-r0 or later
- —upgrade to 2:3.55-1 or later
Is CVE-2020-6829 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 3.55-r0
- from 0, < 2:3.55-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |