Improper Authorization in Handler for Custom URL Scheme in Mozilla Firefox and Firefox ESR - CVE-2023-32214

Vulnerability identifier: #VU75883

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-32214

CWE-ID: CWE-939

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to crash the browser.

The vulnerability exists due to incorrect processing of the ms-cxh and ms-cxh-full handlers. A remote attacker can trick the victim to visit a specially crafted web page and crash the browser.

Note, the vulnerability affects Windows installations only.

Mozilla Firefox
Firefox ESR
Gentoo Linux
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Software Development Kit 12
SUSE CaaS Platform
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
SUSE Enterprise Storage
SUSE OpenStack Cloud Crowbar
SUSE OpenStack Cloud
Oracle Solaris
SUSE Linux Enterprise Server 12 SP2 BCL
SUSE Linux Enterprise Server 12 SP4 ESPOS
SUSE Linux Enterprise Server 12 SP4 LTSS
Slackware Linux
SUSE Linux Enterprise Server 15 SP1 LTSS
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS
SUSE Linux Enterprise Server 15 SP2 LTSS
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP3 LTSS
Desktop Applications Module
SUSE Package Hub 15
openSUSE Leap
Mozilla Thunderbird
IBM Cloud Pak for Multicloud Management Monitoring
mozilla-thunderbird
mozilla-firefox
MozillaFirefox-translations-common
MozillaFirefox-debuginfo
MozillaFirefox-devel
MozillaFirefox
MozillaFirefox-debugsource
MozillaFirefox-translations-other
MozillaThunderbird-translations-common
MozillaThunderbird-debugsource
MozillaThunderbird-translations-other
MozillaThunderbird
MozillaThunderbird-debuginfo
MozillaFirefox-branding-upstream
mail-client/thunderbird
mail-client/thunderbird-bin
www-client/firefox

Install updates from vendor's website.

Mozilla Firefox - update to 113.0
Firefox ESR - update to 102.11.0
Mozilla Thunderbird - update to 102.11.0
IBM Cloud Pak for Multicloud Management Monitoring - update to 2.3 Fix Pack 7
mozilla-thunderbird - update to 102.11.0
mozilla-firefox - addressed in versions 102.11.0esr, 113.0
MozillaFirefox-translations-common - addressed in versions 102.11.0-112.159.1, 102.11.0-150000.150.85.1, 102.11.0-150200.152.87.1
MozillaFirefox-debuginfo - addressed in versions 102.11.0-112.159.1, 102.11.0-150000.150.85.1, 102.11.0-150200.152.87.1
MozillaFirefox-devel - addressed in versions 102.11.0-112.159.1, 102.11.0-150000.150.85.1, 102.11.0-150200.152.87.1
MozillaFirefox - addressed in versions 102.11.0-112.159.1, 102.11.0-150000.150.85.1, 102.11.0-150200.152.87.1
MozillaFirefox-debugsource - addressed in versions 102.11.0-112.159.1, 102.11.0-150000.150.85.1, 102.11.0-150200.152.87.1
MozillaFirefox-translations-other - addressed in versions 102.11.0-150000.150.85.1, 102.11.0-150200.152.87.1
MozillaThunderbird-translations-common - update to 102.11.0-150200.8.116.1
MozillaThunderbird-debugsource - update to 102.11.0-150200.8.116.1
MozillaThunderbird-translations-other - update to 102.11.0-150200.8.116.1
MozillaThunderbird - update to 102.11.0-150200.8.116.1
MozillaThunderbird-debuginfo - update to 102.11.0-150200.8.116.1
MozillaFirefox-branding-upstream - update to 102.11.0-150200.152.87.1
mail-client/thunderbird - update to 102.12
mail-client/thunderbird-bin - update to 102.12
www-client/firefox - update to 104

• https://www.mozilla.org/en-US/security/advisories/mfsa2023-16/
• https://www.mozilla.org/en-US/security/advisories/mfsa2023-17/

• Multiple vulnerabilities in Mozilla Firefox and Firefox ESR
• Slackware Linux update for mozilla-firefox
• Multiple vulnerabilities in Mozilla Thunderbird
• Slackware Linux update for mozilla-thunderbird
• SUSE update for MozillaFirefox
• SUSE update for MozillaFirefox
• SUSE update for MozillaFirefox
• SUSE update for MozillaThunderbird
• Multiple vulnerabilities in Oracle Solaris third-party software
• Multiple vulnerabilities in IBM Cloud Pak for Multicloud Management Monitoring
• Gentoo update for Mozilla Thunderbird
• Gentoo update for Mozilla Firefox