Use-after-free in Google Chrome - CVE-2021-21199

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Main Vulnerability Database Vulnerabilities #VU51806

Use-after-free in Google Chrome - CVE-2021-21199

Published: March 31, 2021


Vulnerability identifier: #VU51806
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-2021-21199
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 in Aura in Google Chrome. A remote attacker can trick the victim to visit a specially crafted web page, 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

Google Chrome
Microsoft Edge
Gentoo Linux
Fedora
chromium (Debian package)
chromium

How to mitigate CVE-2021-21199

Install updates from vendor's website.

Google Chrome - update to 89.0.4389.114
chromium (Debian package) - update to 89.0.4389.114-1~deb10u1
Microsoft Edge - update to 89.0.774.68
chromium - addressed in versions 90.0.4430.93-1.el7, 90.0.4430.93-1.el8, 90.0.4430.93-1.fc32, 90.0.4430.93-1.fc33, 90.0.4430.93-1.fc34

External References

Related Security Bulletins