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openSUSE 15.6 Mozilla Firefox Exhibits Significant Memory Leak Issue

opensuse
Calendar Grey February 25, 2026
Dist Opensuse Esm H88
Critical security update for MozillaFirefox resolves heap overflow issue. Apply important patches immediately.
An update that solves one vulnerability can now be installed.

Description

This update for MozillaFirefox fixes the following issues:

* Update to Firefox 140.7.1 ESR

* CVE-2026-2447: Fixed a heap buffer overflow in libvpx. (bsc#1258231)

Topics%20covered

Topics Covered

security advisory update important heap overflow 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:

* openSUSE Leap 15.6

zypper in -t patch openSUSE-SLE-15.6-2026-611=1

* Desktop Applications Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP7-2026-611=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-611=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-611=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-611=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5

zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-611=1

* SUSE Linux Enterprise Server 15 SP4 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-611=1

* SUSE Linux...

Read the Full Advisory

Package List

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)

* MozillaFirefox-translations-common-140.7.1-150200.152.219.1

* MozillaFirefox-debuginfo-140.7.1-150200.152.219.1

* MozillaFirefox-branding-upstream-140.7.1-150200.152.219.1

* MozillaFirefox-translations-other-140.7.1-150200.152.219.1

* MozillaFirefox-140.7.1-150200.152.219.1

* MozillaFirefox-debugsource-140.7.1-150200.152.219.1

* openSUSE Leap 15.6 (noarch)

* MozillaFirefox-devel-140.7.1-150200.152.219.1

* Desktop Applications Module 15-SP7 (aarch64 ppc64le s390x x86_64)

* MozillaFirefox-translations-common-140.7.1-150200.152.219.1

* MozillaFirefox-debuginfo-140.7.1-150200.152.219.1

* MozillaFirefox-translations-other-140.7.1-150200.152.219.1

* MozillaFirefox-140.7.1-150200.152.219.1

* MozillaFirefox-debugsource-140.7.1-150200.152.219.1

* Desktop Applications Module 15-SP7 (noarch)

* MozillaFirefox-devel-140.7.1-150200.152.219.1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64

x86_64)

*...

Read the Full Advisory

References

* bsc#1258231

## References:

* https://www.suse.com/security/cve/CVE-2026-2447.html

* https://bugzilla.suse.com/show_bug.cgi?id=1258231

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0611-1
Release Date: 2026-02-24T14:47:36Z
Affected Products: * Desktop Applications Module 15-SP7 * openSUSE Leap 15.6 * SUSE Linux Enterprise Desktop 15 SP7 * 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 SP4 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 * SUSE Linux Enterprise Real Time 15 SP7 * 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 SP6 LTSS * SUSE Linux Enterprise Server 15 SP7 * 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 update important heap overflow OpenSUSE MozillaFirefox

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