Improper Certificate Validation The advisory has been revoked - it doesn't affect any version of package thunderbird  (opens in a new tab)


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  • Snyk IDSNYK-UBUNTU2004-THUNDERBIRD-580618
  • published1 Jul 2020
  • disclosed9 Jul 2020

Introduced: 1 Jul 2020

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

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:20.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Ubuntu.

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 This could have caused add-ons to become out-of-date silently without notification to the user.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.