Race condition in Google Chrome - CVE-2021-30603
Published: August 17, 2021 / Updated: August 19, 2021
Vulnerability identifier: #VU55874
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-2021-30603
CWE-ID: CWE-362
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a race condition in WebAudio. A remote attacker can trick the victim to visit a specially crafted webpage and execute arbitrary code on the target system.
Affected software
Google Chrome
Microsoft Edge
Gentoo Linux
Fedora
qt5-qtwebengine
chromium
Microsoft Edge
Gentoo Linux
Fedora
qt5-qtwebengine
chromium
How to mitigate CVE-2021-30603
Install updates from vendor's website.
Google Chrome - update to 92.0.4515.159
Microsoft Edge - update to 92.0.902.78
qt5-qtwebengine - update to 5.15.8-2.fc34
chromium - addressed in versions 93.0.4577.63-1.el8, 93.0.4577.63-1.fc33, 93.0.4577.63-1.fc34, 93.0.4577.63-1.fc35
Microsoft Edge - update to 92.0.902.78
qt5-qtwebengine - update to 5.15.8-2.fc34
chromium - addressed in versions 93.0.4577.63-1.el8, 93.0.4577.63-1.fc33, 93.0.4577.63-1.fc34, 93.0.4577.63-1.fc35