Use-after-free in Google Chromium - CVE-2021-30625

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Main Vulnerability Database Vulnerabilities #VU56476

Use-after-free in Google Chromium - CVE-2021-30625

Published: September 13, 2021 / Updated: December 1, 2021


Vulnerability identifier: #VU56476
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-2021-30625
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the Selection API component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


Affected software

Google Chromium
Google Chrome
Microsoft Edge
Arch Linux
Gentoo Linux
Fedora
qt5-qtwebengine
chromium

How to mitigate CVE-2021-30625

Update to version 93.0.4577.82.

Google Chromium - update to 93.0.4577.82
Google Chrome - update to 93.0.4577.82
Microsoft Edge - update to 93.0.961.52
qt5-qtwebengine - addressed in versions 5.15.8-2.fc34, 5.15.8-2.fc35
chromium - addressed in versions 94.0.4606.61-1.el8, 94.0.4606.61-1.fc33, 94.0.4606.61-1.fc34, 94.0.4606.61-1.fc35

Links to Public Exploits and PoC-codes

External References

Related Security Bulletins