Use-after-free in Mozilla products - CVE-2020-16044

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Main Vulnerability Database Vulnerabilities #VU49300

Use-after-free in Mozilla products - CVE-2020-16044

Published: January 6, 2021 / Updated: January 19, 2021


Vulnerability identifier: #VU49300
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-2020-16044
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 when processing COOKIE-ECHO chunk in a SCTP packet. A remote attacker can pass specially crafted data to the browser, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


Affected software

Mozilla Firefox
Firefox ESR
Microsoft Edge
Google Chrome
Firefox for Android
Arch Linux
Gentoo Linux
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 Power, little 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 IBM z Systems - 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 Server - TUS
Slackware Linux
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-esr (Debian package)
thunderbird (Debian package)
firefox (Red Hat package)
thunderbird (Red Hat package)
chromium (Debian package)
thunderbird (Alpine package)
thunderbird (Ubuntu package)
firefox (Ubuntu package)
chromium
Mozilla Thunderbird

How to mitigate CVE-2020-16044

Install updates from vendor's website.

Mozilla Firefox - update to 84.0.2
Firefox ESR - update to 78.6.1
Firefox for Android - update to 84.1.3
Mozilla Thunderbird - update to 78.6.1
firefox (Alpine package) - update to 84.0.2-r0
firefox-esr (Alpine package) - update to 78.6.1-r0
firefox-esr (Debian package) - update to 78.6.1esr-1~deb10u1
thunderbird (Debian package) - update to 78.7.0-1~deb10u1
firefox (Red Hat package) - addressed in versions 78.6.1-1.el7_9, 78.6.1-1.el8_1, 78.6.1-1.el8_2, 78.6.1-1.el8_3
thunderbird (Red Hat package) - addressed in versions 78.6.1-1.el7_9, 78.6.1-1.el8_1, 78.6.1-1.el8_2, 78.6.1-1.el8_3
chromium (Debian package) - update to 88.0.4324.146-1~deb10u1
thunderbird (Alpine package) - update to 78.6.1-r0
thunderbird (Ubuntu package) - update to 1:78.6.1+build1-0ubuntu0.20.10.1
firefox (Ubuntu package) - addressed in versions 84.0.2+build1-0ubuntu0.16.04.1, 84.0.2+build1-0ubuntu0.18.04.1, 84.0.2+build1-0ubuntu0.20.04.1, 84.0.2+build1-0ubuntu0.20.10.1
Microsoft Edge - update to 88.0.705.50
Google Chrome - update to 88.0.4324.96
chromium - addressed in versions 88.0.4324.96-1.el7, 88.0.4324.96-1.el8, 88.0.4324.96-1.fc32, 88.0.4324.96-1.fc33, 88.0.4324.150-1.el7, 88.0.4324.150-1.el8

External References

Related Security Bulletins