CVE-2020-6829 Affecting nss package, versions <2:3.49.1-1ubuntu1.4


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.19% (58th percentile)

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  • Snyk IDSNYK-UBUNTU2004-NSS-597371
  • published1 Aug 2020
  • disclosed28 Oct 2020

Introduced: 1 Aug 2020

CVE-2020-6829  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 nss to version 2:3.49.1-1ubuntu1.4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nss package and not the nss package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

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 Scores

version 3.1