Information disclosure in Mozilla Firefox and Firefox ESR - CVE-2022-29916

 

Information disclosure in Mozilla Firefox and Firefox ESR - CVE-2022-29916

Published: May 3, 2022


Vulnerability identifier: #VU62758
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-29916
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to browsers behaves differently when loading CSS from known resources involving CSS variables. A remote attacker can monitor browser behavior to guess which websites were previously visited and are stored in browser history.


Affected software

Mozilla Firefox
Firefox ESR
Gentoo Linux
Arch Linux
Anolis OS
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for Power, little endian
CentOS
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux Server - AUS
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
Oracle Linux
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-esr (Debian package)
thunderbird (Debian package)
thunderbird (Red Hat package)
firefox (Red Hat package)
firefox
thunderbird
thunderbird (Ubuntu package)
mail-client/thunderbird-bin
mail-client/thunderbird
firefox (Ubuntu package)
Mozilla Thunderbird
IBM Cloud Pak for Multicloud Management Monitoring
IBM Cloud Application Performance Management (APM)

How to mitigate CVE-2022-29916

Install updates from vendor's website.

Mozilla Firefox - update to 100.0
Firefox ESR - update to 91.9.0
firefox-esr (Debian package) - addressed in versions 91.9.0esr-1~deb10u1, 91.9.0esr-1~deb11u1
thunderbird (Debian package) - addressed in versions 1:91.9.0-1~deb10u1, 1:91.9.0-1~deb11u1
Mozilla Thunderbird - update to 91.9.0
thunderbird (Red Hat package) - addressed in versions 91.9.0-3.el7_9, 91.9.0-3.el8_1, 91.9.0-3.el8_2, 91.9.0-3.el8_4, 91.9.0-3.el8_5, 91.9.0-3.el9_0
firefox (Red Hat package) - addressed in versions 91.9.0-1.el7_9, 91.9.0-1.el8_1, 91.9.0-1.el8_2, 91.9.0-1.el8_5, 91.9.0-1.el9_0
IBM Cloud Pak for Multicloud Management Monitoring - update to 2.3 Fix Pack 6
IBM Cloud Application Performance Management (APM) - update to 8.1.4.0.16
firefox - update to 91.9.0-1.0.1
thunderbird - update to 91.9.0-3.0.1
thunderbird (Ubuntu package) - addressed in versions 1:91.9.1+build1-0ubuntu0.18.04.1, 1:91.9.1+build1-0ubuntu0.20.04.1, 1:91.9.1+build1-0ubuntu0.21.10.1, 1:91.9.1+build1-0ubuntu0.22.04.1
mail-client/thunderbird-bin - update to 91.12.0
mail-client/thunderbird - update to 91.12.0
firefox (Ubuntu package) - addressed in versions 100.0+build2-0ubuntu0.18.04.1, 100.0+build2-0ubuntu0.20.04.1, 100.0+build2-0ubuntu0.21.10.1

External References

Related Security Bulletins