Out-of-Bounds The advisory has been revoked - it doesn't affect any version of package thunderbird  (opens in a new tab)


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EPSS
0.54% (67th percentile)

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  • Snyk IDSNYK-UBUNTU2004-THUNDERBIRD-580647
  • published7 Apr 2020
  • disclosed24 Apr 2020

Introduced: 7 Apr 2020

CVE-2020-6821  (opens in a new tab)
CWE-119  (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 reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data disclosure. This vulnerability affects Thunderbird < 68.7.0, Firefox ESR < 68.7, and Firefox < 75.