CVE-2020-6829

Advisory lineage Upstream: 0 Downstream: 17
Modified
Published: 28 Oct 2020, 00:00
Last modified:04 Aug 2024, 09:11

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
v3.1 (nvd)
EPSS Score
0.58% LOW
1% probability +0.35%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

28 Oct 2020, 00:00
Published
Vulnerability first disclosed
04 Aug 2024, 09:11
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS Trends

Current EPSS score: 0.58%• Percentile: 69%

Affected Systems

  • mozilla•firefox

    < 80.0 | ≥ unspecified, < 80

  • mozilla•firefox for android

    ≥ unspecified, < 80

References (4)