Vulnerability Details CVE-2020-6829
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 45.2%
CVSS Severity
CVSS v3 Score 5.3
CVSS v2 Score 5.0
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/
- 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/
Products affected by CVE-2020-6829
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cpe:2.3:a:mozilla:firefox:*
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cpe:2.3:a:mozilla:firefox:14.0
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cpe:2.3:a:mozilla:firefox:15.0
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cpe:2.3:a:mozilla:firefox:16.0
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cpe:2.3:a:mozilla:firefox:17.0
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cpe:2.3:a:mozilla:firefox:18.0
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cpe:2.3:a:mozilla:firefox:19.0
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cpe:2.3:a:mozilla:firefox:21.0
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cpe:2.3:a:mozilla:firefox:22.0
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cpe:2.3:a:mozilla:firefox:24.0
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cpe:2.3:a:mozilla:firefox:24.1
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cpe:2.3:a:mozilla:firefox:25.0