Use-after-free in Google Chrome - CVE-2021-21232

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Main Vulnerability Database Vulnerabilities #VU52606

Use-after-free in Google Chrome - CVE-2021-21232

Published: April 27, 2021 / Updated: April 27, 2021


Vulnerability identifier: #VU52606
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-2021-21232
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 Dev Tools. 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
Arch Linux
Gentoo Linux
Fedora
chromium (Debian package)
chromium

How to mitigate CVE-2021-21232

Install updates from vendor's website.

Google Chrome - update to 90.0.4430.93
chromium (Debian package) - update to 90.0.4430.93-1~deb10u1
Microsoft Edge - update to 90.0.818.51
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