Use-after-free in Google Chromium - CVE-2021-4102

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU58845

Use-after-free in Google Chromium - CVE-2021-4102

Published: December 13, 2021 / Updated: December 15, 2021


Vulnerability identifier: #VU58845
CSH Severity: Critical
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-2021-4102
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability: The vulnerability is being exploited in the wild

Vulnerability details

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the V8 engine. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Note, the vulnerability is being actively exploited in the wild.


Affected software

Google Chromium
Google Chrome
Microsoft Edge
Gentoo Linux
Fedora
Dell Hybrid Client
qt5-qtwebengine
chromium
chromium (Debian package)
Wyse 5070

How to mitigate CVE-2021-4102

Update to version 96.0.4664.110.

Google Chromium - update to 96.0.4664.110
Dell Hybrid Client - update to 1.6.1
Google Chrome - update to 96.0.4664.110
Microsoft Edge - update to 96.0.1054.57
qt5-qtwebengine - addressed in versions 5.15.8-2.fc34, 5.15.8-2.fc35
Wyse 5070 - update to 10.04.06.01.22.00
chromium - addressed in versions 96.0.4664.110-2.el8, 96.0.4664.110-2.fc34, 96.0.4664.110-2.fc35, 96.0.4664.110-3.fc34, 96.0.4664.110-3.fc35
chromium (Debian package) - update to 97.0.4692.71-0.1~deb11u1

External References

Related Security Bulletins