Security update for grub2

Announcement ID: SUSE-SU-2025:4305-1
Release Date: 2025-11-28T13:33:44Z
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2025-54770 ( SUSE ): 2.1 CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
  • CVE-2025-54770 ( SUSE ): 4.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
  • CVE-2025-54770 ( NVD ): 4.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
  • CVE-2025-54771 ( SUSE ): 2.1 CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
  • CVE-2025-54771 ( SUSE ): 4.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
  • CVE-2025-54771 ( NVD ): 4.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
  • CVE-2025-61661 ( SUSE ): 4.3 CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-61661 ( SUSE ): 4.8 CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
  • CVE-2025-61661 ( NVD ): 4.8 CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
  • CVE-2025-61662 ( SUSE ): 2.1 CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
  • CVE-2025-61662 ( SUSE ): 4.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
  • CVE-2025-61662 ( NVD ): 4.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
  • CVE-2025-61663 ( SUSE ): 2.1 CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
  • CVE-2025-61663 ( SUSE ): 4.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
  • CVE-2025-61663 ( NVD ): 4.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
  • CVE-2025-61664 ( SUSE ): 2.1 CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
  • CVE-2025-61664 ( SUSE ): 4.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
  • CVE-2025-61664 ( NVD ): 4.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Affected Products:
  • Basesystem Module 15-SP7
  • Server Applications Module 15-SP7
  • SUSE Linux Enterprise Desktop 15 SP7
  • SUSE Linux Enterprise Real Time 15 SP7
  • SUSE Linux Enterprise Server 15 SP7
  • SUSE Linux Enterprise Server for SAP Applications 15 SP7

An update that solves six vulnerabilities and has one security fix can now be installed.

Description:

This update for grub2 fixes the following issues:

  • CVE-2025-54771: Fixed rub_file_close() does not properly controls the fs refcount (bsc#1252931)
  • CVE-2025-54770: Fixed missing unregister call for net_set_vlan command may lead to use-after-free (bsc#1252930)
  • 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)
  • CVE-2025-61661: Fixed out-of-bounds write in grub_usb_get_string() function (bsc#1252932)

Other fixes:

  • Bump upstream SBAT generation to 6
  • Fixed timeout when loading initrd via http after PPC CAS reboot (bsc#1245953)

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:

  • Basesystem Module 15-SP7
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2025-4305=1
  • Server Applications Module 15-SP7
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2025-4305=1

Package List:

  • Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    • grub2-2.12-150700.19.19.1
    • grub2-debuginfo-2.12-150700.19.19.1
  • Basesystem Module 15-SP7 (noarch)
    • grub2-snapper-plugin-2.12-150700.19.19.1
    • grub2-powerpc-ieee1275-2.12-150700.19.19.1
    • grub2-x86_64-efi-2.12-150700.19.19.1
    • grub2-arm64-efi-2.12-150700.19.19.1
    • grub2-systemd-sleep-plugin-2.12-150700.19.19.1
    • grub2-i386-pc-2.12-150700.19.19.1
  • Basesystem Module 15-SP7 (aarch64 s390x x86_64)
    • grub2-debugsource-2.12-150700.19.19.1
  • Basesystem Module 15-SP7 (s390x)
    • grub2-s390x-emu-2.12-150700.19.19.1
  • Server Applications Module 15-SP7 (noarch)
    • grub2-x86_64-xen-2.12-150700.19.19.1

References: