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Mozilla: Leaking browser history with CSS variables

🗓️ 04 May 2022 11:28:27Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

Firefox may leak history by probing resources when loading CSS variables, Mozilla advisory.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
ALT Linux		Security fix for the ALT Linux 10 package firefox-esr version 91.9.0-alt1
4 May 202200:00
–altlinux
ALT Linux		Security fix for the ALT Linux 10 package thunderbird version 91.9.0-alt1
4 May 202200:00
–altlinux
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in Mozilla Firefox affect IBM Cloud Pak for Multicloud Management Monitoring.
31 Jan 202314:47
–ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities of Mozilla Firefox (less than Firefox 102.2ESR) have affected Synthetic Playback Agent 8.1.4.0-8.1.4 IF16 - 2022.4.0
15 Nov 202205:24
–ibm
Tenable Nessus		AlmaLinux 8 : firefox (ALSA-2022:1705)
12 May 202200:00
–nessus
Tenable Nessus		AlmaLinux 8 : thunderbird (ALSA-2022:1730)
12 May 202200:00
–nessus
Tenable Nessus		AlmaLinux 9 : thunderbird (ALSA-2022:4589)
16 Nov 202200:00
–nessus
Tenable Nessus		AlmaLinux 9 : firefox (ALSA-2022:4590)
16 Nov 202200:00
–nessus
Tenable Nessus		CentOS 7 : firefox (RHSA-2022:1703)
6 May 202200:00
–nessus
Tenable Nessus		CentOS 7 : thunderbird (RHSA-2022:1725)
6 May 202200:00
–nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.5aarch64firefox91.9.0-1.el8_5firefox-91.9.0-1.el8_5.aarch64.rpm
Red Hat Enterprise Linux8.5ppc64lefirefox91.9.0-1.el8_5firefox-91.9.0-1.el8_5.ppc64le.rpm
Red Hat Enterprise Linux8.5s390xfirefox91.9.0-1.el8_5firefox-91.9.0-1.el8_5.s390x.rpm
Red Hat Enterprise Linux8.5x86_64firefox91.9.0-1.el8_5firefox-91.9.0-1.el8_5.x86_64.rpm
Red Hat Enterprise Linux8.5aarch64firefox-debuginfo91.9.0-1.el8_5firefox-debuginfo-91.9.0-1.el8_5.aarch64.rpm
Red Hat Enterprise Linux8.5ppc64lefirefox-debuginfo91.9.0-1.el8_5firefox-debuginfo-91.9.0-1.el8_5.ppc64le.rpm
Red Hat Enterprise Linux8.5s390xfirefox-debuginfo91.9.0-1.el8_5firefox-debuginfo-91.9.0-1.el8_5.s390x.rpm
Red Hat Enterprise Linux8.5x86_64firefox-debuginfo91.9.0-1.el8_5firefox-debuginfo-91.9.0-1.el8_5.x86_64.rpm
Red Hat Enterprise Linux8.5aarch64firefox-debugsource91.9.0-1.el8_5firefox-debugsource-91.9.0-1.el8_5.aarch64.rpm
Red Hat Enterprise Linux8.5ppc64lefirefox-debugsource91.9.0-1.el8_5firefox-debugsource-91.9.0-1.el8_5.ppc64le.rpm
Rows per page

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21 Nov 2025 18:30Current
7.3High risk
Vulners AI Score7.3
CVSS 3.16.5
EPSS0.00723
SSVC
CWE-497
firefox history leakcss variablescss resourcessecurity advisory
4