CVE-2020-6829
medium
CVSS v3
—
CVSS v2
—
VIR risk
5.5
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: rocky — https://errata.rockylinux.org/RLSA-2021:0538
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-6829
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | sid | fixed | 80.0-1 |
| rocky | 8 | fixed | |
| debian | bookworm | fixed | 2:3.55-1 |
| debian | bullseye | fixed | 2:3.55-1 |
| debian | forky | fixed | 2:3.55-1 |
| debian | trixie | fixed | 2:3.55-1 |
References
Verify integrity in audit chain (admin only). AS-IS.