Use-after-free in Google Chromium - CVE-2021-30616

Vulnerability identifier: #VU56207

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-30616

CWE-ID: CWE-416

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within Media in Google Chrome. A remote attacker can trick the victim into visiting a specially crafted web page, trigger a use-after-free error and gain access to sensitive information.

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

Update to version 93.0.4577.63.

Google Chromium - update to 93.0.4577.63
Google Chrome - update to 93.0.4577.63
Microsoft Edge - update to 93.0.961.38
qt5-qtwebengine - addressed in versions 5.15.8-2.fc34, 5.15.8-2.fc35
chromium - addressed in versions 93.0.4577.63-1.el8, 93.0.4577.63-1.fc33, 93.0.4577.63-1.fc34, 93.0.4577.63-1.fc35

• https://chromereleases.googleblog.com/2021/08/stable-channel-update-for-desktop_31.html
• https://crbug.com/1231432

• Multiple vulnerabilities in Google Chrome
• Multiple vulnerabilities in Microsoft Edge
• Gentoo update for Chromium, Google Chrome
• Fedora 33 update for chromium
• Fedora 35 update for chromium
• Fedora 34 update for chromium
• Fedora EPEL 8 update for chromium
• Fedora 35 update for qt5-qtwebengine
• Fedora 34 update for qt5-qtwebengine