Use of uninitialized resource in Google Chrome - CVE-2021-21190

Vulnerability identifier: #VU51150

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-21190

CWE-ID: CWE-908

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to usage of uninitialized resources in PDFium in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and crash the browser.

Google Chrome
Microsoft Edge
Arch Linux
Fedora
chromium (Debian package)
chromium

Update to version 89.0.4389.72.

Google Chrome - update to 89.0.4389.72
chromium (Debian package) - update to 89.0.4389.114-1~deb10u1
Microsoft Edge - update to 89.0.774.45
chromium - addressed in versions 89.0.4389.82-1.el7, 89.0.4389.82-1.el8, 89.0.4389.82-1.fc32, 89.0.4389.82-1.fc33, 89.0.4389.82-1.fc34, 89.0.4389.90-3.fc33, 89.0.4389.90-3.fc34

• https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.html
• https://crbug.com/1166091

• Multiple vulnerabilities in Google Chrome
• Multiple vulnerabilities in Microsoft Edge (Chromium-based)
• Arch Linux update for vivaldi
• Debian update for chromium
• Fedora 33 update for chromium
• Fedora 32 update for chromium
• Fedora 34 update for chromium
• Fedora EPEL 8 update for chromium
• Fedora EPEL 7 update for chromium
• Fedora 34 update for chromium
• Fedora 33 update for chromium