Use of a Broken or Risky Cryptographic Algorithm Affecting nss-softokn package, versions <0:3.53.1-17.el8_3


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.19% (58th percentile)

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  • Snyk IDSNYK-RHEL8-NSSSOFTOKN-3952389
  • published26 Jul 2021
  • disclosed2 Jun 2020

Introduced: 2 Jun 2020

CVE-2020-6829  (opens in a new tab)
CWE-327  (opens in a new tab)

How to fix?

Upgrade RHEL:8 nss-softokn to version 0:3.53.1-17.el8_3 or higher.
This issue was patched in RHSA-2021:0538.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nss-softokn package and not the nss-softokn package as distributed by RHEL. See How to fix? for RHEL:8 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