Use-after-free in Google Chrome - CVE-2020-6462

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Main Vulnerability Database Vulnerabilities #VU27372

Use-after-free in Google Chrome - CVE-2020-6462

Published: April 28, 2020


Vulnerability identifier: #VU27372
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-2020-6462
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in task scheduling. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger a 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.


Affected software

Google Chrome
Arch Linux
Gentoo Linux
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for Scientific Computing
Fedora
SUSE Linux
Opensuse
chromium-browser (Red Hat package)
chromium (Debian package)
chromium

How to mitigate CVE-2020-6462

Install updates from vendor's website.

Google Chrome - update to 81.0.4044.129
chromium-browser (Red Hat package) - update to 81.0.4044.129-1.el6_10
chromium (Debian package) - update to 83.0.4103.116-1~deb10u1
chromium - addressed in versions 81.0.4044.138-1.el7, 81.0.4044.138-1.el8, 81.0.4044.138-1.fc30, 81.0.4044.138-1.fc31, 81.0.4044.138-1.fc32

External References

Related Security Bulletins