Permissions, Privileges, and Access Controls in Mozilla Firefox and Firefox ESR - CVE-2023-29532

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Main Vulnerability Database Vulnerabilities #VU74821

Permissions, Privileges, and Access Controls in Mozilla Firefox and Firefox ESR - CVE-2023-29532

Published: April 11, 2023


Vulnerability identifier: #VU74821
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-29532
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the way Mozilla Maintenance Service handles write-locks when downloading updates from a SMB server. A local user can apply an unsigned update file by pointing the service at an update file on a malicious SMB server.

The vulnerability affects only Firefox for Windows.


Affected software

Mozilla Firefox
Firefox ESR
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Server for SAP Applications 12
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 High Performance Computing 15 SP1 LTSS
SUSE Linux Enterprise Server 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
openEuler
Mozilla Thunderbird
IBM Cloud Pak for Multicloud Management Monitoring
mozjs78
mozjs78-debuginfo
mozjs78-devel
mozjs78-debugsource
mozjs78-help
mozjs91
mozjs91-debugsource
libmozjs-91-0
mozjs91-debuginfo
mozjs91-devel
mozilla-thunderbird
mozilla-firefox
MozillaFirefox-debugsource
MozillaFirefox-debuginfo
MozillaFirefox-translations-common
MozillaFirefox-devel
MozillaFirefox
MozillaFirefox-translations-other
MozillaFirefox-branding-upstream
MozillaThunderbird-translations-common
MozillaThunderbird
MozillaThunderbird-debuginfo
MozillaThunderbird-translations-other
MozillaThunderbird-debugsource

How to mitigate CVE-2023-29532

Install updates from vendor's website.

Mozilla Firefox - update to 112.0
Firefox ESR - update to 102.10.0
Mozilla Thunderbird - update to 102.10.0
IBM Cloud Pak for Multicloud Management Monitoring - update to 2.3 Fix Pack 7
mozjs78 - update to 78.4.0-8
mozjs78-debuginfo - update to 78.4.0-8
mozjs78-devel - update to 78.4.0-8
mozjs78-debugsource - update to 78.4.0-8
mozjs78-help - update to 78.4.0-8
mozjs91 - update to 91.6.0-5
mozjs91-debugsource - update to 91.6.0-5
libmozjs-91-0 - update to 91.6.0-5
mozjs91-debuginfo - update to 91.6.0-5
mozjs91-devel - update to 91.6.0-5
mozilla-thunderbird - update to 102.10.0
mozilla-firefox - addressed in versions 102.10.0esr, 112.0
MozillaFirefox-debugsource - addressed in versions 102.10.0-112.156.1, 102.10.0-150000.150.82.1, 102.10.0-150200.152.84.1
MozillaFirefox-debuginfo - addressed in versions 102.10.0-112.156.1, 102.10.0-150000.150.82.1, 102.10.0-150200.152.84.1
MozillaFirefox-translations-common - addressed in versions 102.10.0-112.156.1, 102.10.0-150000.150.82.1, 102.10.0-150200.152.84.1
MozillaFirefox-devel - addressed in versions 102.10.0-112.156.1, 102.10.0-150000.150.82.1, 102.10.0-150200.152.84.1
MozillaFirefox - addressed in versions 102.10.0-112.156.1, 102.10.0-150000.150.82.1, 102.10.0-150200.152.84.1
MozillaFirefox-translations-other - addressed in versions 102.10.0-150000.150.82.1, 102.10.0-150200.152.84.1
MozillaFirefox-branding-upstream - update to 102.10.0-150200.152.84.1
MozillaThunderbird-translations-common - update to 102.10.1-150200.8.113.2
MozillaThunderbird - update to 102.10.1-150200.8.113.2
MozillaThunderbird-debuginfo - update to 102.10.1-150200.8.113.2
MozillaThunderbird-translations-other - update to 102.10.1-150200.8.113.2
MozillaThunderbird-debugsource - update to 102.10.1-150200.8.113.2

External References

Related Security Bulletins