CVE-2020-6829 Affecting nss-softokn-freebl package, versions <0:3.53.1-6.46.amzn1


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.19% (58th percentile)

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  • Snyk IDSNYK-AMZN201803-NSSSOFTOKNFREEBL-1726617
  • published27 Sept 2021
  • disclosed28 Oct 2020

Introduced: 28 Oct 2020

CVE-2020-6829  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 nss-softokn-freebl to version 0:3.53.1-6.46.amzn1 or higher.
This issue was patched in ALAS-2021-1522.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nss-softokn-freebl package and not the nss-softokn-freebl package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 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