Time-of-check Time-of-use (TOCTOU) The advisory has been revoked - it doesn't affect any version of package thunderbird  (opens in a new tab)


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EPSS
0.1% (29th percentile)

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  • Snyk IDSNYK-UBUNTU2004-THUNDERBIRD-2420620
  • published10 Mar 2022
  • disclosed22 Dec 2022

Introduced: 10 Mar 2022

CVE-2022-26387  (opens in a new tab)
CWE-367  (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 installing an add-on, Firefox verified the signature before prompting the user; but while the user was confirming the prompt, the underlying add-on file could have been modified and Firefox would not have noticed. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.