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openSUSE: grub2 Moderate Security Fixes CVE-2025-54770 2025:4196-1

opensuse
Calendar Grey November 24, 2025
Dist Opensuse Esm H88
A security advisory for openSUSE addressing six vulnerabilities in grub2. Important updates are required for users.
An update that solves six vulnerabilities and has four security fixes can now be installed.

Description

This update for grub2 fixes the following issues:

* CVE-2025-54770: Fixed missing unregister call for net_set_vlan command may

lead to use-after-free (bsc#1252930)

* CVE-2025-54771: Fixed rub_file_close() does not properly controls the fs

refcount (bsc#1252931)

* CVE-2025-61661: Fixed out-of-bounds write in grub_usb_get_string() function

(bsc#1252932)

* CVE-2025-61662: Fixed missing unregister call for gettext command may lead

to use-after-free (bsc#1252933)

* CVE-2025-61663: Fixed missing unregister call for normal commands may lead

to use-after-free (bsc#1252934)

* CVE-2025-61664: Fixed missing unregister call for normal_exit command may

lead to use-after-free (bsc#1252935)

Other fixes:

* Bump upstream SBAT generation to 6

* Fix timeout when loading initrd via http after PPC CAS reboot (bsc#1245953)

* Fix PPC CAS reboot failure work when initiated via submenu (bsc#1241132)

* Fix out of memory issue on PowerPC by increasing RMA size...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory moderate security issue OpenSUSE use-after-free grub2

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 SUSE-2025-4196=1 openSUSE-SLE-15.6-2025-4196=1

* Basesystem Module 15-SP6

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP6-2025-4196=1

* Server Applications Module 15-SP6

zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP6-2025-4196=1

Package List

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)

* grub2-2.12-150600.8.44.2

* grub2-debuginfo-2.12-150600.8.44.2

* grub2-branding-upstream-2.12-150600.8.44.2

* openSUSE Leap 15.6 (aarch64 s390x x86_64 i586)

* grub2-debugsource-2.12-150600.8.44.2

* openSUSE Leap 15.6 (noarch)

* grub2-i386-xen-2.12-150600.8.44.2

* grub2-arm64-efi-extras-2.12-150600.8.44.2

* grub2-snapper-plugin-2.12-150600.8.44.2

* grub2-i386-pc-debug-2.12-150600.8.44.2

* grub2-i386-efi-2.12-150600.8.44.2

* grub2-systemd-sleep-plugin-2.12-150600.8.44.2

* grub2-x86_64-xen-debug-2.12-150600.8.44.2

* grub2-x86_64-xen-2.12-150600.8.44.2

* grub2-powerpc-ieee1275-extras-2.12-150600.8.44.2

* grub2-x86_64-efi-2.12-150600.8.44.2

* grub2-i386-efi-debug-2.12-150600.8.44.2

* grub2-i386-pc-extras-2.12-150600.8.44.2

* grub2-powerpc-ieee1275-2.12-150600.8.44.2

* grub2-x86_64-efi-debug-2.12-150600.8.44.2

* grub2-i386-pc-2.12-150600.8.44.2

* grub2-x86_64-xen-extras-2.12-150600.8.44.2

* grub2-i386-xen-debug-2.12-150600.8.44.2

*...

Read the Full Advisory

References

* bsc#1236744

* bsc#1241132

* bsc#1245953

* bsc#1252269

* bsc#1252930

* bsc#1252931

* bsc#1252932

* bsc#1252933

* bsc#1252934

* bsc#1252935

## References:

* https://www.suse.com/security/cve/CVE-2025-54770.html

* https://www.suse.com/security/cve/CVE-2025-54771.html

* https://www.suse.com/security/cve/CVE-2025-61661.html

* https://www.suse.com/security/cve/CVE-2025-61662.html

* https://www.suse.com/security/cve/CVE-2025-61663.html

* https://www.suse.com/security/cve/CVE-2025-61664.html

* https://bugzilla.suse.com/show_bug.cgi?id=1236744

* https://bugzilla.suse.com/show_bug.cgi?id=1241132

* https://bugzilla.suse.com/show_bug.cgi?id=1245953

* https://bugzilla.suse.com/show_bug.cgi?id=1252269

* https://bugzilla.suse.com/show_bug.cgi?id=1252930

* https://bugzilla.suse.com/show_bug.cgi?id=1252931

* https://bugzilla.suse.com/show_bug.cgi?id=1252932

* https://bugzilla.suse.com/show_bug.cgi?id=1252933

* https://bugzilla.suse.com/show_bug.cgi?id=1252934

* https://bugzilla.suse.com/show_bug.cgi?id=1252935

Announcement ID: SUSE-SU-2025:4196-1
Release Date: 2025-11-24T10:54:35Z
Affected Products: * Basesystem Module 15-SP6 * openSUSE Leap 15.6 * Server Applications Module 15-SP6 * SUSE Linux Enterprise Desktop 15 SP6 * SUSE Linux Enterprise Real Time 15 SP6 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server for SAP Applications 15 SP6

Topics%20covered

Topics Covered

security advisory moderate security issue OpenSUSE use-after-free grub2

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