CVE-2022-28282

Publication date 6 April 2022

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

By using a link with <code>rel="localization"</code> a use-after-free could have been triggered by destroying an object during JavaScript execution and then referencing the object through a freed pointer, leading to a potential exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
firefox	23.04 lunar	Fixed in 1:1snap1-0ubuntu1
	22.10 kinetic	Fixed in 1:1snap1-0ubuntu1
	22.04 LTS jammy	Fixed in 1:1snap1-0ubuntu1
	21.10 impish	Fixed in 99.0+build2-0ubuntu0.21.10.2
	20.04 LTS focal	Fixed in 99.0+build2-0ubuntu0.20.04.2
	18.04 LTS bionic	Fixed in 99.0+build2-0ubuntu0.18.04.2
	16.04 LTS xenial	Ignored end of standard support
	14.04 LTS trusty	Not in release
thunderbird	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	21.10 impish	Fixed in 1:91.8.1+build1-0ubuntu0.21.10.1
	20.04 LTS focal	Fixed in 1:91.8.1+build1-0ubuntu0.20.04.1
	18.04 LTS bionic	Fixed in 1:91.8.1+build1-0ubuntu0.18.04.1
	16.04 LTS xenial	Ignored end of standard support
	14.04 LTS trusty	Not in release

Severity score breakdown

CVSS version: CVSS v3.0

Base score 6.5 · Medium

Base metrics

Parameter	Value
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality impact	None
Integrity impact	None
Availability impact	High

Scores

Parameter	Value
Base score	6.5 · Medium
Exploitability score	-
Impact score	-

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-5370-1
Firefox vulnerabilities
7 April 2022

USN-5393-1
Thunderbird vulnerabilities
27 April 2022