Use After Free Affecting thunderbird package, versions <1:78.12.0+build2-0ubuntu1


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.81% (83rd percentile)

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  • Snyk IDSNYK-UBUNTU2110-THUNDERBIRD-1736906
  • published15 Jul 2021
  • disclosed5 Aug 2021

Introduced: 15 Jul 2021

CVE-2021-29970  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Ubuntu:21.10 thunderbird to version 1:78.12.0+build2-0ubuntu1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Ubuntu. See How to fix? for Ubuntu:21.10 relevant fixed versions and status.

A malicious webpage could have triggered a use-after-free, memory corruption, and a potentially exploitable crash. This bug could only be triggered when accessibility was enabled.. This vulnerability affects Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90.

CVSS Scores

version 3.1