Heap-based buffer overflow in Google Chrome - CVE-2021-21197

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU51800

Heap-based buffer overflow in Google Chrome - CVE-2021-21197

Published: March 30, 2021 / Updated: March 31, 2021


Vulnerability identifier: #VU51800
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-2021-21197
CWE-ID: CWE-122
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 boundary error when processing untrusted HTML content in TabStrip. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger a heap-based buffer overflow and execute arbitrary code on the target system.


Affected software

Google Chrome
Microsoft Edge
Gentoo Linux
Fedora
chromium (Debian package)
chromium

How to mitigate CVE-2021-21197

Update to version 89.0.4389.114.

Google Chrome - update to 89.0.4389.114
chromium (Debian package) - update to 89.0.4389.114-1~deb10u1
Microsoft Edge - update to 89.0.774.68
chromium - addressed in versions 90.0.4430.93-1.el7, 90.0.4430.93-1.el8, 90.0.4430.93-1.fc32, 90.0.4430.93-1.fc33, 90.0.4430.93-1.fc34

External References

Related Security Bulletins