Use-after-free in Google Chromium - CVE-2021-30562

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Main Vulnerability Database Vulnerabilities #VU54905

Use-after-free in Google Chromium - CVE-2021-30562

Published: July 15, 2021


Vulnerability identifier: #VU54905
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-2021-30562
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability: No public exploit 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 WebSerial 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
Gentoo Linux
Arch Linux
Fedora
chromium

How to mitigate CVE-2021-30562

Update to version 91.0.4472.164.

Google Chromium - update to 91.0.4472.164
Google Chrome - update to 91.0.4472.164
Microsoft Edge - update to 91.0.864.71
chromium - addressed in versions 91.0.4472.164-1.el8, 91.0.4472.164-1.fc33, 91.0.4472.164-1.fc34

External References

Related Security Bulletins