Use-after-free in Google Chrome - CVE-2021-21204

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Main Vulnerability Database Vulnerabilities #VU52235

Use-after-free in Google Chrome - CVE-2021-21204

Published: April 14, 2021 / Updated: April 15, 2021


Vulnerability identifier: #VU52235
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-2021-21204
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 within the Blink component in Google Chrome. 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.


Affected software

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

How to mitigate CVE-2021-21204

Update to version 90.0.4430.72.

Google Chrome - update to 90.0.4430.72
chromium (Debian package) - update to 90.0.4430.85-1~deb10u1
Microsoft Edge - update to 90.0.818.39
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