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CVE-2021-43528

Published: 8 December 2021

Thunderbird unexpectedly enabled JavaScript in the composition area. The JavaScript execution context was limited to this area and did not receive chrome-level privileges, but could be used as a stepping stone to further an attack with other vulnerabilities. This vulnerability affects Thunderbird < 91.4.0.

Priority

Low

CVSS 3 base score: 6.5

Status

Package Release Status
thunderbird
Launchpad, Ubuntu, Debian
bionic
Released (1:91.5.0+build1-0ubuntu0.18.04.1)
focal
Released (1:91.5.0+build1-0ubuntu0.20.04.1)
hirsute Ignored
(reached end-of-life)
impish
Released (1:91.5.0+build1-0ubuntu0.21.10.1)
jammy
Released (1:91.4.0+build1-0ubuntu1)
trusty Ignored
(out of standard support)
upstream
Released (91.4)
xenial Needs triage