Out-of-bounds read in Google Chrome - CVE-2021-21198

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Main Vulnerability Database Vulnerabilities #VU51801

Out-of-bounds read in Google Chrome - CVE-2021-21198

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


Vulnerability identifier: #VU51801
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-21198
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the IPC component in Google Chrome. A remote attacker can trick the victim into visiting a specially crafted web page, trigger an out-of-bounds read error and gain access to sensitive information.


Affected software

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

How to mitigate CVE-2021-21198

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