Use-after-free in Google Chromium - CVE-2021-4057

Vulnerability identifier: #VU58539

CSH Severity: High

CVSS v4.0: 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/E:U/U:Amber

CVE-ID: CVE-2021-4057

CWE-ID: CWE-416

Exploitation vector: Remote access

Exploit availability: No public exploit available

Affected software:
Google Chromium
Google Chrome
Microsoft Edge
Arch Linux
Gentoo Linux
Fedora
Chrome OS
qt5-qtwebengine
chromium
chromium (Debian package)
www-client/google-chrome
dev-qt/qtwebengine
www-client/chromium

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the file 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.

Update to version 96.0.4664.93.

• https://chromereleases.googleblog.com/2021/12/stable-channel-update-for-desktop.html
• https://crbug.com/1262183
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4057