Information Exposure The advisory has been revoked - it doesn't affect any version of package thunderbird  (opens in a new tab)


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EPSS
0.71% (72nd percentile)

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  • Snyk IDSNYK-UBUNTU2004-THUNDERBIRD-1080167
  • published27 Feb 2021
  • disclosed26 Feb 2021

Introduced: 26 Feb 2021

CVE-2021-23973  (opens in a new tab)
CWE-209  (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 trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.