Spoofing attack in Google Chrome - CVE-2021-21134

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Main Vulnerability Database Vulnerabilities #VU49712

Spoofing attack in Google Chrome - CVE-2021-21134

Published: January 19, 2021 / Updated: January 19, 2021


Vulnerability identifier: #VU49712
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-21134
CWE-ID: CWE-451
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a spoofing attack.

The vulnerability exists due to insufficient validation of user-supplied input in Page Info in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and spoof web page content.


Affected software

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

How to mitigate CVE-2021-21134

Update to version 88.0.4324.96.

Google Chrome - update to 88.0.4324.96
chromium (Debian package) - update to 88.0.4324.146-1~deb10u1
Microsoft Edge - update to 88.0.705.50
chromium - addressed in versions 88.0.4324.96-1.el7, 88.0.4324.96-1.el8, 88.0.4324.96-1.fc32, 88.0.4324.96-1.fc33, 88.0.4324.150-1.el7, 88.0.4324.150-1.el8

External References

Related Security Bulletins