CVE-2020-6829

medium

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.

References

https://www.mozilla.org/security/advisories/mfsa2020-39/

https://www.mozilla.org/security/advisories/mfsa2020-36/

https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html

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

Details

Source: Mitre, NVD

Published: 2020-10-28

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Severity: Medium