Improper Certificate Validation Affecting MozillaFirefox-branding-SLE package, versions <78-4.14.1


Severity

Recommended
high

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.46% (76th percentile)

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  • Snyk IDSNYK-SLES152-MOZILLAFIREFOXBRANDINGSLE-2708024
  • published14 Apr 2022
  • disclosed13 Jul 2020

Introduced: 13 Jul 2020

CVE-2020-12421  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 MozillaFirefox-branding-SLE to version 78-4.14.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream MozillaFirefox-branding-SLE package and not the MozillaFirefox-branding-SLE package as distributed by SLES. See How to fix? for SLES:15.2 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 This could have caused add-ons to become out-of-date silently without notification to the user.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