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Important Memory Safety Flaws in MozillaFirefox for openSUSE Leap 15.6

opensuse
Calendar Grey September 22, 2025
Dist Opensuse Esm H88
The latest update addresses six significant vulnerabilities in Mozilla Firefox for openSUSE platforms, enhancing security measures and optimizing user experience.
An update that solves seven vulnerabilities can now be installed.

Description

This update for MozillaFirefox fixes the following issues:

Firefox Extended Support Release 140.3.0 ESR (bsc#1249391).

MFSA 2025-75:

* CVE-2025-10527 (bmo#1984825) Sandbox escape due to use-after-free in the

Graphics: Canvas2D component

* CVE-2025-10528 (bmo#1986185) Sandbox escape due to undefined behavior,

invalid pointer in the Graphics: Canvas2D component

* CVE-2025-10529 (bmo#1970490) Same-origin policy bypass in the Layout

component

* CVE-2025-10532 (bmo#1979502) Incorrect boundary conditions in the

JavaScript: GC component

* CVE-2025-10533 (bmo#1980788) Integer overflow in the SVG component

* CVE-2025-10536 (bmo#1981502) Information disclosure in the Networking: Cache

component

* CVE-2025-10537 (bmo#1938220, bmo#1980730, bmo#1981280, bmo#1981283,

bmo#1984505, bmo#1985067) Memory safety bugs fixed in Firefox ESR 140.3,

Thunderbird ESR 140.3, Firefox 143 and Thunderbird 143

Topics%20covered

Topics Covered

security advisory vulnerability important memory safety OpenSUSE MozillaFirefox

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:

* SUSE Enterprise Storage 7.1

zypper in -t patch SUSE-Storage-7.1-2025-3291=1

* openSUSE Leap 15.6

zypper in -t patch openSUSE-SLE-15.6-2025-3291=1

* Desktop Applications Module 15-SP6

zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP6-2025-3291=1

* Desktop Applications Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP7-2025-3291=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP3

zypper in -t patch SUSE-SLE-Product-HPC-15-SP3-LTSS-2025-3291=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2025-3291=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2025-3291=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15...

Read the Full Advisory

Package List

* SUSE Enterprise Storage 7.1 (aarch64 x86_64)

* MozillaFirefox-translations-other-140.3.0-150200.152.201.1

* MozillaFirefox-translations-common-140.3.0-150200.152.201.1

* MozillaFirefox-debuginfo-140.3.0-150200.152.201.1

* MozillaFirefox-140.3.0-150200.152.201.1

* MozillaFirefox-debugsource-140.3.0-150200.152.201.1

* SUSE Enterprise Storage 7.1 (noarch)

* MozillaFirefox-devel-140.3.0-150200.152.201.1

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)

* MozillaFirefox-translations-other-140.3.0-150200.152.201.1

* MozillaFirefox-translations-common-140.3.0-150200.152.201.1

* MozillaFirefox-debuginfo-140.3.0-150200.152.201.1

* MozillaFirefox-140.3.0-150200.152.201.1

* MozillaFirefox-branding-upstream-140.3.0-150200.152.201.1

* MozillaFirefox-debugsource-140.3.0-150200.152.201.1

* openSUSE Leap 15.6 (noarch)

* MozillaFirefox-devel-140.3.0-150200.152.201.1

* Desktop Applications Module 15-SP6 (aarch64 ppc64le s390x x86_64)

* MozillaFirefox-translations-other-140.3.0-150200.152.201.1

*...

Read the Full Advisory

References

* bsc#1249391

## References:

* https://www.suse.com/security/cve/CVE-2025-10527.html

* https://www.suse.com/security/cve/CVE-2025-10528.html

* https://www.suse.com/security/cve/CVE-2025-10529.html

* https://www.suse.com/security/cve/CVE-2025-10532.html

* https://www.suse.com/security/cve/CVE-2025-10533.html

* https://www.suse.com/security/cve/CVE-2025-10536.html

* https://www.suse.com/security/cve/CVE-2025-10537.html

* https://bugzilla.suse.com/show_bug.cgi?id=1249391

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:03291-1
Release Date: 2025-09-22T13:49:47Z
Affected Products: * Desktop Applications Module 15-SP6 * Desktop Applications Module 15-SP7 * openSUSE Leap 15.6 * SUSE Enterprise Storage 7.1 * SUSE Linux Enterprise Desktop 15 SP6 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise High Performance Computing 15 SP3 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise High Performance Computing 15 SP5 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 * SUSE Linux Enterprise Real Time 15 SP6 * SUSE Linux Enterprise Real Time 15 SP7 * SUSE Linux Enterprise Server 15 SP3 * SUSE Linux Enterprise Server 15 SP3 LTSS * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server 15 SP4 LTSS * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server 15 SP5 LTSS * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP3 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 * SUSE Linux Enterprise Server for SAP Applications 15 SP5 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 * SUSE Linux Enterprise Server for SAP Applications 15 SP7

Topics%20covered

Topics Covered

security advisory vulnerability important memory safety OpenSUSE MozillaFirefox

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