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openSUSE 15.3 shim Moderate Security Fix Advisory 2026-0741-1

opensuse
Calendar Grey March 2, 2026
Dist Opensuse Esm H88
An update addressing a moderate security fix in openSUSE's shim application is now available for installation.
An update that solves one vulnerability and has one security fix can now be installed.

Description

This update for shim fixes the following issues:

shim is updated to version 16.1:

* shim_start_image(): fix guid/handle pairing when uninstalling protocols

* Fix uncompressed ipv6 netboot

* fix test segfaults caused by uninitialized memory

* SbatLevel_Variable.txt: minor typo fix.

* Realloc() needs to allocate one more byte for sprintf()

* IPv6: Add more check to avoid multiple double colon and illegal char

* Loader proto v2

* loader-protocol: add workaround for EDK2 2025.02 page fault on FreePages

* Generate Authenticode for the entire PE file

* README: mention new loader protocol and interaction with UKIs

* shim: change automatically enable MOK_POLICY_REQUIRE_NX

* Save var info

* add SbatLevel entry 2025051000 for PSA-2025-00012-1

* Coverity fixes 20250804

* fix http boot

* Fix double free and leak in the loader protocol

shim is updated to version 16.0:

* Validate that a supplied vendor cert is not in PEM format

* sbat: Add grub.peimage,2 to...

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Topics%20covered

Topics Covered

security advisory moderate denial of service security fix OpenSUSE shim

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 15.3

zypper in -t patch SUSE-2026-741=1

* openSUSE Leap 15.6

zypper in -t patch openSUSE-SLE-15.6-2026-741=1

* SUSE Linux Enterprise Micro for Rancher 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-741=1

* SUSE Linux Enterprise Micro 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-741=1

* SUSE Linux Enterprise Micro for Rancher 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-741=1

* SUSE Linux Enterprise Micro 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-741=1

* SUSE Linux Enterprise Micro 5.5

zypper in -t patch SUSE-SLE-Micro-5.5-2026-741=1

* Basesystem Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-741=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-741=1

* SUSE Linux Enterprise High...

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Package List

* openSUSE Leap 15.3 (aarch64 x86_64)

* shim-16.1-150300.4.31.3

* shim-debugsource-16.1-150300.4.31.3

* shim-debuginfo-16.1-150300.4.31.3

* openSUSE Leap 15.6 (aarch64 x86_64)

* shim-16.1-150300.4.31.3

* shim-debugsource-16.1-150300.4.31.3

* shim-debuginfo-16.1-150300.4.31.3

* SUSE Linux Enterprise Micro for Rancher 5.3 (aarch64 x86_64)

* shim-16.1-150300.4.31.3

* shim-debugsource-16.1-150300.4.31.3

* shim-debuginfo-16.1-150300.4.31.3

* SUSE Linux Enterprise Micro 5.3 (aarch64 x86_64)

* shim-16.1-150300.4.31.3

* shim-debugsource-16.1-150300.4.31.3

* shim-debuginfo-16.1-150300.4.31.3

* SUSE Linux Enterprise Micro for Rancher 5.4 (aarch64 x86_64)

* shim-16.1-150300.4.31.3

* shim-debugsource-16.1-150300.4.31.3

* shim-debuginfo-16.1-150300.4.31.3

* SUSE Linux Enterprise Micro 5.4 (aarch64 x86_64)

* shim-16.1-150300.4.31.3

* shim-debugsource-16.1-150300.4.31.3

* shim-debuginfo-16.1-150300.4.31.3

* SUSE Linux Enterprise Micro 5.5 (aarch64 x86_64)

* shim-16.1-150300.4.31.3

* shim-debugsource-16.1-150300.4.31.3

*...

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References

* bsc#1240871

* bsc#1247432

## References:

* https://www.suse.com/security/cve/CVE-2024-2312.html

* https://bugzilla.suse.com/show_bug.cgi?id=1240871

* https://bugzilla.suse.com/show_bug.cgi?id=1247432

Announcement ID: SUSE-SU-2026:0741-1
Release Date: 2026-03-02T08:11:32Z
Affected Products: * Basesystem Module 15-SP7 * openSUSE Leap 15.3 * 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 Micro 5.2 * SUSE Linux Enterprise Micro 5.3 * SUSE Linux Enterprise Micro 5.4 * SUSE Linux Enterprise Micro 5.5 * SUSE Linux Enterprise Micro for Rancher 5.2 * SUSE Linux Enterprise Micro for Rancher 5.3 * SUSE Linux Enterprise Micro for Rancher 5.4 * 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 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 SP7

Topics%20covered

Topics Covered

security advisory moderate denial of service security fix OpenSUSE shim

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