Buffer overflow in Google Chromium - CVE-2021-30626

Vulnerability identifier: #VU56486

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-2021-30626

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a boundary error in ANGLE in Google Chrome. A remote attacker can trick the victim to visit a specially crafted webpage, trigger a stack-based buffer overflow and execute arbitrary code on the system.

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

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

• https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html
• https://crbug.com/1241036
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30626

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