CVE-2020-6829

EPSS 1.4%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 1.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

28 Oct 2020Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

Affected products

Mozilla · Firefox Mozilla · Firefox for Android

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References

https://bugzilla.mozilla.org/show_bug.cgi?id=1631583 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/