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Use After Free The advisory has been revoked - it doesn't affect any version of package thunderbird  (opens in a new tab)

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EPSS
2.04% (80th percentile)

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  • Snyk IDSNYK-UBUNTU2004-THUNDERBIRD-584028
  • published20 Mar 2019
  • disclosed26 Apr 2019
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Introduced: 20 Mar 2019

CVE-2019-9796  (opens in a new tab)
CWE-416  (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.

A use-after-free vulnerability can occur when the SMIL animation controller incorrectly registers with the refresh driver twice when only a single registration is expected. When a registration is later freed with the removal of the animation controller element, the refresh driver incorrectly leaves a dangling pointer to the driver's observer array. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.