SUSE-SU-2025:01615-1: moderate: Security update for grub2

[SLE-UPDATES]

# Security update for grub2

Announcement ID: SUSE-SU-2025:01615-1  
Release Date: 2025-05-21T09:53:14Z  
Rating: moderate  
References:

  * bsc#1235958
  * bsc#1235971
  * bsc#1239651
  * bsc#1242971
  * jsc#PED-12028

  
Cross-References:

  * CVE-2025-4382

  
CVSS scores:

  * CVE-2025-4382 ( SUSE ):  8.4
    CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
  * CVE-2025-4382 ( SUSE ):  5.9 CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2025-4382 ( NVD ):  5.9 CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

  
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

  
  
An update that solves one vulnerability, contains one feature and has three
security fixes can now be installed.

## Description:

This update for grub2 rebuilds the existing package with the new 4k RSA secure
boot key for IBM Power and Z.

Note: the signing key of x86 / x86_64 and aarch64 architectures are unchanged.

Also the following issue were fixed:

  * CVE-2025-4382: TPM auto-decryption data exposure (bsc#1242971)
  * Fix segmentation fault error in grub2-probe with target=hints_string
    (bsc#1235971) (bsc#1235958) (bsc#1239651)

## 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-SP6  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP6-2025-1615=1

  * Server Applications Module 15-SP6  
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP6-2025-1615=1

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2025-1615=1 openSUSE-SLE-15.6-2025-1615=1

## Package List:

  * Basesystem Module 15-SP6 (noarch)
    * grub2-powerpc-ieee1275-2.12-150600.8.27.1
    * grub2-i386-pc-2.12-150600.8.27.1
    * grub2-snapper-plugin-2.12-150600.8.27.1
    * grub2-x86_64-efi-2.12-150600.8.27.1
    * grub2-systemd-sleep-plugin-2.12-150600.8.27.1
    * grub2-arm64-efi-2.12-150600.8.27.1
  * Basesystem Module 15-SP6 (aarch64 ppc64le s390x x86_64)
    * grub2-debuginfo-2.12-150600.8.27.1
    * grub2-2.12-150600.8.27.1
  * Basesystem Module 15-SP6 (aarch64 s390x x86_64)
    * grub2-debugsource-2.12-150600.8.27.1
  * Basesystem Module 15-SP6 (s390x)
    * grub2-s390x-emu-2.12-150600.8.27.1
  * Server Applications Module 15-SP6 (noarch)
    * grub2-x86_64-xen-2.12-150600.8.27.1
  * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
    * grub2-debuginfo-2.12-150600.8.27.1
    * grub2-2.12-150600.8.27.1
    * grub2-branding-upstream-2.12-150600.8.27.1
  * openSUSE Leap 15.6 (aarch64 s390x x86_64 i586)
    * grub2-debugsource-2.12-150600.8.27.1
  * openSUSE Leap 15.6 (noarch)
    * grub2-powerpc-ieee1275-debug-2.12-150600.8.27.1
    * grub2-powerpc-ieee1275-2.12-150600.8.27.1
    * grub2-i386-pc-2.12-150600.8.27.1
    * grub2-arm64-efi-extras-2.12-150600.8.27.1
    * grub2-snapper-plugin-2.12-150600.8.27.1
    * grub2-x86_64-efi-extras-2.12-150600.8.27.1
    * grub2-i386-pc-extras-2.12-150600.8.27.1
    * grub2-i386-xen-2.12-150600.8.27.1
    * grub2-arm64-efi-debug-2.12-150600.8.27.1
    * grub2-powerpc-ieee1275-extras-2.12-150600.8.27.1
    * grub2-i386-efi-2.12-150600.8.27.1
    * grub2-x86_64-efi-debug-2.12-150600.8.27.1
    * grub2-i386-efi-debug-2.12-150600.8.27.1
    * grub2-x86_64-xen-2.12-150600.8.27.1
    * grub2-i386-efi-extras-2.12-150600.8.27.1
    * grub2-i386-xen-debug-2.12-150600.8.27.1
    * grub2-i386-pc-debug-2.12-150600.8.27.1
    * grub2-arm64-efi-2.12-150600.8.27.1
    * grub2-x86_64-xen-extras-2.12-150600.8.27.1
    * grub2-s390x-emu-extras-2.12-150600.8.27.1
    * grub2-x86_64-xen-debug-2.12-150600.8.27.1
    * grub2-i386-xen-extras-2.12-150600.8.27.1
    * grub2-x86_64-efi-2.12-150600.8.27.1
    * grub2-systemd-sleep-plugin-2.12-150600.8.27.1
  * openSUSE Leap 15.6 (s390x)
    * grub2-s390x-emu-2.12-150600.8.27.1
    * grub2-s390x-emu-debug-2.12-150600.8.27.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-4382.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1235958
  * https://bugzilla.suse.com/show_bug.cgi?id=1235971
  * https://bugzilla.suse.com/show_bug.cgi?id=1239651
  * https://bugzilla.suse.com/show_bug.cgi?id=1242971
  * https://jira.suse.com/browse/PED-12028

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