Use-after-free in Mozilla Firefox - CVE-2022-26385
Published: March 8, 2022
Vulnerability identifier: #VU61107
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-26385
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error during thread shutdown. A remote attacker can force the user to close the thread, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Affected software
Mozilla Firefox
Gentoo Linux
Ubuntu
firefox (Ubuntu package)
Gentoo Linux
Ubuntu
firefox (Ubuntu package)
How to mitigate CVE-2022-26385
Install updates from vendor's website.
Mozilla Firefox - update to 98.0
firefox (Ubuntu package) - addressed in versions 98.0+build3-0ubuntu0.18.04.2, 98.0+build3-0ubuntu0.20.04.2, 98.0+build3-0ubuntu0.21.10.2, 98.0.1+build2-0ubuntu0.18.04.1, 98.0.1+build2-0ubuntu0.20.04.1, 98.0.1+build2-0ubuntu0.21.10.1, 98.0.2+build1-0ubuntu0.18.04.1, 98.0.2+build1-0ubuntu0.20.04.1, 98.0.2+build1-0ubuntu0.21.10.1
firefox (Ubuntu package) - addressed in versions 98.0+build3-0ubuntu0.18.04.2, 98.0+build3-0ubuntu0.20.04.2, 98.0+build3-0ubuntu0.21.10.2, 98.0.1+build2-0ubuntu0.18.04.1, 98.0.1+build2-0ubuntu0.20.04.1, 98.0.1+build2-0ubuntu0.21.10.1, 98.0.2+build1-0ubuntu0.18.04.1, 98.0.2+build1-0ubuntu0.20.04.1, 98.0.2+build1-0ubuntu0.21.10.1