Use-after-free in Google Chrome - CVE-2021-30556

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Main Vulnerability Database Vulnerabilities #VU54212

Use-after-free in Google Chrome - CVE-2021-30556

Published: June 17, 2021 / Updated: June 18, 2021


Vulnerability identifier: #VU54212
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-2021-30556
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 WebAudio 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
qt5-qtwebengine
chromium

How to mitigate CVE-2021-30556

Update to version 91.0.4472.114.

Google Chrome - update to 91.0.4472.114
Microsoft Edge - update to 91.0.864.54
qt5-qtwebengine - update to 5.15.8-2.fc34
chromium - addressed in versions 91.0.4472.114-1.el8, 91.0.4472.114-1.fc33, 91.0.4472.114-1.fc34, 91.0.4472.114-2.el8, 91.0.4472.114-2.fc33, 91.0.4472.164-1.el8

External References

Related Security Bulletins