Out-of-bounds write in Google Chromium - CVE-2021-30632
Published: September 13, 2021 / Updated: October 22, 2021
Vulnerability identifier: #VU56482
CSH Severity: Critical
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-2021-30632
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted HTML content in V8. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger out-of-bounds write and execute arbitrary code on the target system.
Note, the vulnerability is being actively exploited in-the-wild.
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-2021-30632
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 93.0.961.47
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 93.0.961.47
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