Use of uninitialized resource in Google Chrome - CVE-2020-16042

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Main Vulnerability Database Vulnerabilities #VU48790

Use of uninitialized resource in Google Chrome - CVE-2020-16042

Published: December 2, 2020 / Updated: December 15, 2020


Vulnerability identifier: #VU48790
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-16042
CWE-ID: CWE-908
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to usage of uninitialized resources in V8 in Google Chrome. A remote attacker can trick the victim to visit a specially crafted webpage, trigger uninitialized usage of resources and bypass implemented security mechanisms.


Affected software

Google Chrome
Mozilla Firefox
Firefox ESR
Arch Linux
Gentoo Linux
CentOS
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for IBM z Systems
Fedora
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux Server - TUS
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-esr (Debian package)
firefox (Alpine package)
firefox-esr (Alpine package)
thunderbird (Debian package)
chromium (Debian package)
firefox (Red Hat package)
thunderbird (Red Hat package)
thunderbird (Alpine package)
mozjs78 (Alpine package)
thunderbird (Ubuntu package)
firefox (Ubuntu package)
chromium
Mozilla Thunderbird

How to mitigate CVE-2020-16042

Update to version 87.0.4280.88.

Google Chrome - update to 87.0.4280.88
Mozilla Thunderbird - update to 78.6.0
Mozilla Firefox - update to 84.0
Firefox ESR - update to 78.6.0
firefox-esr (Debian package) - update to 78.6.0esr-1~deb10u1
firefox (Alpine package) - update to 84.0.1-r0
firefox-esr (Alpine package) - update to 78.6.0-r0
thunderbird (Debian package) - update to 78.6.0-1~deb10u1
chromium (Debian package) - update to 87.0.4280.88-0.4~deb10u1
firefox (Red Hat package) - addressed in versions 78.6.0-1.el7_9, 78.6.0-1.el8_0, 78.6.0-1.el8_1, 78.6.0-1.el8_2, 78.6.0-1.el8_3
thunderbird (Red Hat package) - addressed in versions 78.6.0-1.el7_9, 78.6.0-1.el8_0, 78.6.0-1.el8_1, 78.6.0-1.el8_2, 78.6.0-1.el8_3
thunderbird (Alpine package) - update to 78.6.1-r0
mozjs78 (Alpine package) - update to 78.7.0-r0
thunderbird (Ubuntu package) - update to 1:78.6.1+build1-0ubuntu0.20.10.1
firefox (Ubuntu package) - addressed in versions 84.0+build3-0ubuntu0.16.04.1, 84.0+build3-0ubuntu0.18.04.1, 84.0+build3-0ubuntu0.20.04.1, 84.0+build3-0ubuntu0.20.10.1
chromium - addressed in versions 87.0.4280.88-1.el7, 87.0.4280.88-1.el8, 87.0.4280.88-1.fc32, 87.0.4280.88-1.fc33

External References

Related Security Bulletins