Type Confusion in Google Chrome - CVE-2021-21230

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Main Vulnerability Database Vulnerabilities #VU52618

Type Confusion in Google Chrome - CVE-2021-21230

Published: April 27, 2021 / Updated: April 27, 2021


Vulnerability identifier: #VU52618
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-2021-21230
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a type confusion error in V8. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger a type confusion error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Affected software

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

How to mitigate CVE-2021-21230

Install updates from vendor's website.

Google Chrome - update to 90.0.4430.93
chromium (Debian package) - update to 90.0.4430.93-1~deb10u1
Microsoft Edge - update to 90.0.818.51
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