CVE-2023-4577 The advisory has been revoked - it doesn't affect any version of package thunderbird  (opens in a new tab)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-5874952
  • published30 Aug 2023
  • disclosed11 Sept 2023

Introduced: 30 Aug 2023

CVE-2023-4577  (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 UpdateRegExpStatics attempted to access initialStringHeap it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.