Improper Following of a Certificate's Chain of Trust Affecting firefox package, versions <0:68.10.0-1.el7_8


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.46% (76th percentile)

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  • Snyk IDSNYK-RHEL7-FIREFOX-8011949
  • published17 Sept 2024
  • disclosed30 Jun 2020

Introduced: 30 Jun 2020

CVE-2020-12421  (opens in a new tab)
CWE-296  (opens in a new tab)

How to fix?

Upgrade RHEL:7 firefox to version 0:68.10.0-1.el7_8 or higher.
This issue was patched in RHSA-2020:2827.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

When performing add-on updates, certificate chains terminating in non-built-in-roots were rejected (even if they were legitimately added by an administrator.) This could have caused add-ons to become out-of-date silently without notification to the user. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

CVSS Scores

version 3.1