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openSUSE Thunderbird Security Notice for CVE-2025-14321: Update 2025:4397-1

opensuse
Calendar Grey December 15, 2025
Dist Opensuse Esm H88
Security update for Mozilla Thunderbird addresses 10 critical issues ensuring higher stability and user safety on openSUSE.
An update that solves 10 vulnerabilities can now be installed.

Description

This update for MozillaThunderbird fixes the following issues:

Update to Mozilla Thunderbird 140.6 (bsc#1254551).

* MFSA 2025-96

* CVE-2025-14321: use-after-free in the WebRTC: Signaling component.

* CVE-2025-14322: sandbox escape due to incorrect boundary conditions in the

Graphics: CanvasWebGL component.

* CVE-2025-14323: privilege escalation in the DOM: Notifications component.

* CVE-2025-14324: JIT miscompilation in the JavaScript Engine: JIT component.

* CVE-2025-14325: JIT miscompilation in the JavaScript Engine: JIT component.

* CVE-2025-14328: privilege escalation in the Netmonitor component.

* CVE-2025-14329: privilege escalation in the Netmonitor component.

* CVE-2025-14330: JIT miscompilation in the JavaScript Engine: JIT component.

* CVE-2025-14331: same-origin policy bypass in the Request Handling component.

* CVE-2025-14333: memory safety bugs.

Topics%20covered

Topics Covered

security advisory privilege escalation exploit important OpenSUSE MozillaThunderbird

Patch

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like

YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

* openSUSE Leap 15.6

zypper in -t patch openSUSE-SLE-15.6-2025-4397=1

* SUSE Package Hub 15 15-SP6

zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP6-2025-4397=1

* SUSE Package Hub 15 15-SP7

zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2025-4397=1

* SUSE Linux Enterprise Workstation Extension 15 SP6

zypper in -t patch SUSE-SLE-Product-WE-15-SP6-2025-4397=1

* SUSE Linux Enterprise Workstation Extension 15 SP7

zypper in -t patch SUSE-SLE-Product-WE-15-SP7-2025-4397=1

Package List

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)

* MozillaThunderbird-debugsource-140.6.0-150200.8.248.1

* MozillaThunderbird-debuginfo-140.6.0-150200.8.248.1

* MozillaThunderbird-translations-other-140.6.0-150200.8.248.1

* MozillaThunderbird-140.6.0-150200.8.248.1

* MozillaThunderbird-translations-common-140.6.0-150200.8.248.1

* SUSE Package Hub 15 15-SP6 (aarch64 ppc64le s390x)

* MozillaThunderbird-debugsource-140.6.0-150200.8.248.1

* MozillaThunderbird-debuginfo-140.6.0-150200.8.248.1

* MozillaThunderbird-translations-other-140.6.0-150200.8.248.1

* MozillaThunderbird-140.6.0-150200.8.248.1

* MozillaThunderbird-translations-common-140.6.0-150200.8.248.1

* SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x)

* MozillaThunderbird-debugsource-140.6.0-150200.8.248.1

* MozillaThunderbird-debuginfo-140.6.0-150200.8.248.1

* MozillaThunderbird-translations-other-140.6.0-150200.8.248.1

* MozillaThunderbird-140.6.0-150200.8.248.1

* MozillaThunderbird-translations-common-140.6.0-150200.8.248.1

* SUSE Linux...

Read the Full Advisory

References

* bsc#1254551

## References:

* https://www.suse.com/security/cve/CVE-2025-14321.html

* https://www.suse.com/security/cve/CVE-2025-14322.html

* https://www.suse.com/security/cve/CVE-2025-14323.html

* https://www.suse.com/security/cve/CVE-2025-14324.html

* https://www.suse.com/security/cve/CVE-2025-14325.html

* https://www.suse.com/security/cve/CVE-2025-14328.html

* https://www.suse.com/security/cve/CVE-2025-14329.html

* https://www.suse.com/security/cve/CVE-2025-14330.html

* https://www.suse.com/security/cve/CVE-2025-14331.html

* https://www.suse.com/security/cve/CVE-2025-14333.html

* https://bugzilla.suse.com/show_bug.cgi?id=1254551

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:4397-1
Release Date: 2025-12-15T11:26:47Z
Affected Products: * openSUSE Leap 15.6 * SUSE Linux Enterprise Desktop 15 SP6 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise Real Time 15 SP6 * SUSE Linux Enterprise Real Time 15 SP7 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 * SUSE Linux Enterprise Server for SAP Applications 15 SP7 * SUSE Linux Enterprise Workstation Extension 15 SP6 * SUSE Linux Enterprise Workstation Extension 15 SP7 * SUSE Package Hub 15 15-SP6 * SUSE Package Hub 15 15-SP7

Topics%20covered

Topics Covered

security advisory privilege escalation exploit important OpenSUSE MozillaThunderbird

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