Improperly implemented security check for standard in Google Chrome - CVE-2020-6514

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Main Vulnerability Database Vulnerabilities #VU29860

Improperly implemented security check for standard in Google Chrome - CVE-2020-6514

Published: July 14, 2020 / Updated: July 25, 2021


Vulnerability identifier: #VU29860
CSH Severity: Medium
CVSS v4: 5.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-6514
CWE-ID: CWE-358
Exploitation vector: Remote access
Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to WebRTC used the memory address of a class instance as a connection identifier. A remote attacker can use the obtained value to bypass ASLR protection.

Affected software

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

How to mitigate CVE-2020-6514

Update to version 84.0.4147.89.

Google Chrome - update to 84.0.4147.89
Firefox ESR - addressed in versions 68.11.0, 78.1.0
Mozilla Firefox - update to 79.0
Mozilla Thunderbird - addressed in versions 68.11.0, 78.0.1
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 87.0.4280.88-0.4~deb10u1
chromium-browser (Red Hat package) - update to 84.0.4147.105-2.el6_10
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 84.0.4147.89-1.el7, 84.0.4147.89-1.el8, 84.0.4147.89-1.fc31, 84.0.4147.89-1.fc32

Links to Public Exploits and PoC-codes

External References

Related Security Bulletins