Recommended update for grub2

Announcement ID: SUSE-SU-2025:02813-1
Release Date: 2025-08-15T12:53:14Z
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2024-56738 ( SUSE ): 5.7 CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
  • CVE-2024-56738 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
  • CVE-2024-56738 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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 one vulnerability and has three security fixes can now be installed.

Description:

This update for grub2 fixes the following issues:

  • CVE-2024-56738: Fixed side-channel attack due to not constant-time algorithm in grub_crypto_memcmp (bsc#1234959)

Other fixes: - Fix test -f and -s do not work properly over the network files served via tftp and http (bsc#1246157, bsc#1246237) - Skip mount point in grub_find_device function (bsc#1246231)

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-SP7-2025-2813=1
  • Server Applications Module 15-SP7
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2025-2813=1

Package List:

  • Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    • grub2-2.12-150700.19.13.2
    • grub2-debuginfo-2.12-150700.19.13.2
  • Basesystem Module 15-SP7 (noarch)
    • grub2-i386-pc-2.12-150700.19.13.2
    • grub2-x86_64-efi-2.12-150700.19.13.2
    • grub2-snapper-plugin-2.12-150700.19.13.2
    • grub2-powerpc-ieee1275-2.12-150700.19.13.2
    • grub2-arm64-efi-2.12-150700.19.13.2
    • grub2-systemd-sleep-plugin-2.12-150700.19.13.2
  • Basesystem Module 15-SP7 (aarch64 s390x x86_64)
    • grub2-debugsource-2.12-150700.19.13.2
  • Basesystem Module 15-SP7 (s390x)
    • grub2-s390x-emu-2.12-150700.19.13.2
  • Server Applications Module 15-SP7 (noarch)
    • grub2-x86_64-xen-2.12-150700.19.13.2

References: