CVE-2020-6829

CVE-2020-6829

Medium · published October 28, 2020

CVSS v3.1
5.3
EPSS
1%
Percentile
73.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.01479 · 73.7th percentile
Published
2020-10-28T16:15Z
Affected products (2)
ProductVersionsFixed in
mozilla/firefox< 80.080.0
mozilla/firefox_mobile< 80.080.0
References (8)
https://bugzilla.mozilla.org/show_bug.cgi?id=1631583 · [email protected]https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html · [email protected]https://www.mozilla.org/security/advisories/mfsa2020-36/ · [email protected]https://www.mozilla.org/security/advisories/mfsa2020-39/ · [email protected]https://bugzilla.mozilla.org/show_bug.cgi?id=1631583 · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/02/msg00021.html · af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2020-36/ · af854a3a-2127-422b-91ae-364da2661108https://www.mozilla.org/security/advisories/mfsa2020-39/ · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 28 OCT 00:00Z
    When performing EC scalar point multiplication, the wNAF point multiplication algorithm was used; which leaked partial information about the nonce used during…
    cvelistv5