Type Confusion in Google Chromium - CVE-2021-30631
Published: September 13, 2021 / Updated: September 17, 2021
Vulnerability identifier: #VU56481
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-2021-30631
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a type confusion error within the Blink layout component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger a type confusion error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Google Chromium
Google Chrome
Microsoft Edge
Gentoo Linux
Arch Linux
Fedora
chromium
Google Chrome
Microsoft Edge
Gentoo Linux
Arch Linux
Fedora
chromium
How to mitigate CVE-2021-30631
Update to version 93.0.4577.82.
Google Chromium - update to 93.0.4577.82
Google Chrome - update to 93.0.4577.82
Microsoft Edge - update to 93.0.961.52
chromium - addressed in versions 94.0.4606.61-1.el8, 94.0.4606.61-1.fc33, 94.0.4606.61-1.fc34, 94.0.4606.61-1.fc35
Google Chrome - update to 93.0.4577.82
Microsoft Edge - update to 93.0.961.52
chromium - addressed in versions 94.0.4606.61-1.el8, 94.0.4606.61-1.fc33, 94.0.4606.61-1.fc34, 94.0.4606.61-1.fc35