Use-after-free in Google Chrome - CVE-2021-21145

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Main Vulnerability Database Vulnerabilities #VU50262

Use-after-free in Google Chrome - CVE-2021-21145

Published: February 2, 2021 / Updated: February 6, 2021


Vulnerability identifier: #VU50262
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-2021-21145
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 Fonts 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
Arch Linux
Gentoo Linux
Fedora
chromium (Debian package)
chromium

How to mitigate CVE-2021-21145

Update to version 88.0.4324.146.

Google Chrome - update to 88.0.4324.146
Microsoft Edge - update to 88.0.705.62
chromium (Debian package) - update to 88.0.4324.146-1~deb10u1
chromium - addressed in versions 88.0.4324.150-1.el7, 88.0.4324.150-1.el8, 88.0.4324.150-1.fc32, 88.0.4324.150-1.fc33

External References

Related Security Bulletins