CVE-2022-0566

Publication date 18 February 2022

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

It may be possible for an attacker to craft an email message that causes Thunderbird to perform an out-of-bounds write of one byte when processing the message. This vulnerability affects Thunderbird < 91.6.1.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
thunderbird	23.04 lunar	Fixed 1:91.6.1+build1-0ubuntu1
	22.10 kinetic	Fixed 1:91.6.1+build1-0ubuntu1
	22.04 LTS jammy	Fixed 1:91.6.1+build1-0ubuntu1
	21.10 impish	Fixed 1:91.7.0+build2-0ubuntu0.21.10.1
	20.04 LTS focal	Fixed 1:91.7.0+build2-0ubuntu0.20.04.1
	18.04 LTS bionic	Fixed 1:91.7.0+build2-0ubuntu0.18.04.1
	16.04 LTS xenial	Ignored end of standard support
	14.04 LTS trusty	Ignored end of standard support

Severity score breakdown

Parameter	Value
Base score	8.8 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-5345-1
Thunderbird vulnerabilities
23 March 2022