Use-after-free in Google Chromium - CVE-2021-37970

Vulnerability identifier: #VU56787

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-2021-37970

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 File System API 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
media-libs/libjpeg-turbo
chromium
chromium (Debian package)

Update to version 94.0.4606.54.

Google Chromium - update to 94.0.4606.54
Google Chrome - update to 94.0.4606.54
Microsoft Edge - update to 94.0.992.31
media-libs/libjpeg-turbo - update to 2.1.1
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
chromium (Debian package) - update to 97.0.4692.71-0.1~deb11u1

• https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_21.html
• https://crbug.com/1248030
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-37970

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