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Race Condition The advisory has been revoked - it doesn't affect any version of package thunderbird Open this link in a new tab

    Threat Intelligence

    EPSS 0.22% (60th percentile)
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NVD
7.5 high
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Red Hat
7.5 high

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  • Snyk ID SNYK-UBUNTU1804-THUNDERBIRD-1290449
  • published 7 May 2021
  • disclosed 24 Jun 2021
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Introduced: 7 May 2021

CVE-2021-29952 Open this link in a new tab
CWE-362 Open this link in a new tab

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:18.04.

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 Web Render components were destructed, a race condition could have caused undefined behavior, and we presume that with enough effort may have been exploitable to run arbitrary code. This vulnerability affects Firefox < 88.0.1 and Firefox for Android < 88.1.3.