Use-after-free in Google Chrome - CVE-2020-6463

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Main Vulnerability Database Vulnerabilities #VU29152

Use-after-free in Google Chrome - CVE-2020-6463

Published: June 19, 2020 / Updated: July 30, 2020


Vulnerability identifier: #VU29152
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-2020-6463
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to use-after-free error in ANGLE in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger a heap-based buffer overflow and execute arbitrary code on the system.


Affected software

Google Chrome
Mozilla Firefox
Firefox ESR
Gentoo Linux
Debian Linux
Red Hat Enterprise Linux for Scientific Computing
CentOS
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Fedora
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux Server - AUS
Slackware Linux
SUSE Linux
Opensuse
Ubuntu
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
firefox (Alpine package)
firefox-esr (Alpine package)
firefox (Red Hat package)
mozjs68 (Alpine package)
chromium (Debian package)
firefox-esr (Debian package)
thunderbird (Red Hat package)
thunderbird (Debian package)
firefox (Ubuntu package)
chromium
Mozilla Thunderbird

How to mitigate CVE-2020-6463

Install update from vendor's website.

Google Chrome - update to 81.0.4044.122
Mozilla Thunderbird - addressed in versions 68.11.0, 78.0.1
Mozilla Firefox - update to 79.0
Firefox ESR - addressed in versions 68.11.0, 78.1.0
firefox (Alpine package) - update to 79.0-r0
firefox-esr (Alpine package) - addressed in versions 68.11.0-r0, 78.1.0-r0
firefox (Red Hat package) - addressed in versions 68.11.0-1.el6_10, 68.11.0-1.el7_8, 68.11.0-1.el8_0, 68.11.0-1.el8_1, 68.11.0-1.el8_2
mozjs68 (Alpine package) - update to 68.11.0-r0
chromium (Debian package) - update to 83.0.4103.116-1~deb10u1
firefox-esr (Debian package) - update to 68.11.0esr-1~deb10u1
thunderbird (Red Hat package) - addressed in versions 68.11.0-1.el6_10, 68.11.0-1.el7_8, 68.11.0-1.el8_0, 68.11.0-1.el8_1, 68.11.0-1.el8_2
thunderbird (Debian package) - update to 1:68.11.0-1~deb10u1
firefox (Ubuntu package) - addressed in versions 79.0+build1-0ubuntu0.16.04.2, 79.0+build1-0ubuntu0.18.04.1, 79.0+build1-0ubuntu0.20.04.1
chromium - addressed in versions 83.0.4103.106-1.el7, 83.0.4103.106-1.el8, 83.0.4103.106-1.fc31, 83.0.4103.106-1.fc32, 83.0.4103.116-3.el7, 83.0.4103.116-3.el8, 83.0.4103.116-3.fc31, 83.0.4103.116-3.fc32

External References

Related Security Bulletins