Permissions, Privileges, and Access Controls in Google Chrome - CVE-2021-21111

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Main Vulnerability Database Vulnerabilities #VU49307

Permissions, Privileges, and Access Controls in Google Chrome - CVE-2021-21111

Published: January 6, 2021 / Updated: January 7, 2021


Vulnerability identifier: #VU49307
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-2021-21111
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient policy enforcement in WebUI in Google Chrome. A remote attacker can trick the victim to visit a specially crafted website, bypass implemented security measures and compromise the affected system.


Affected software

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

How to mitigate CVE-2021-21111

Update to version 87.0.4280.141.

Google Chrome - update to 87.0.4280.141
chromium (Debian package) - update to 87.0.4280.141-0.1~deb10u1
chromium - addressed in versions 87.0.4280.141-1.el7, 87.0.4280.141-1.el8, 87.0.4280.141-1.fc32, 87.0.4280.141-1.fc33, 88.0.4324.96-1.el7, 88.0.4324.96-1.el8, 88.0.4324.150-1.el7, 88.0.4324.150-1.el8

External References

Related Security Bulletins