Improperly implemented security check for standard in Google Chrome - CVE-2021-21209

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Main Vulnerability Database Vulnerabilities #VU52239

Improperly implemented security check for standard in Google Chrome - CVE-2021-21209

Published: April 14, 2021 / Updated: April 15, 2021


Vulnerability identifier: #VU52239
CSH Severity: High
CVSS v4: 7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-21209
CWE-ID: CWE-358
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to incorrect implementation in storage in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and gain access to sensitive information.


Affected software

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

How to mitigate CVE-2021-21209

Update to version 90.0.4430.72.

Google Chrome - update to 90.0.4430.72
chromium (Debian package) - update to 90.0.4430.85-1~deb10u1
Microsoft Edge - update to 90.0.818.39
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