Security update for grub2 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2025:01747-1 Final 1 1 2025-05-29T12:40:34Z current 2025-05-29T12:40:34Z 2025-05-29T12:40:34Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for grub2 This update for grub2 fixes the following issues: Security fixes: - CVE-2025-4382: exposure of data from encrypted device through CLI once the root device is successfully unlocked via TPM (bsc#1242971). Other bug fixes: - Fix incorrect nvme disks and boot order in bootlist output (bsc#1237174). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2025-1747,SUSE-SLE-Module-Basesystem-15-SP7-2025-1747,SUSE-SLE-Module-Server-Applications-15-SP7-2025-1747 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2025/suse-su-202501747-1/ Link for SUSE-SU-2025:01747-1 https://lists.suse.com/pipermail/sle-updates/2025-May/039419.html E-Mail link for SUSE-SU-2025:01747-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1237174 SUSE Bug 1237174 https://bugzilla.suse.com/1242971 SUSE Bug 1242971 https://www.suse.com/security/cve/CVE-2025-4382/ SUSE CVE CVE-2025-4382 page SUSE Linux Enterprise Module for Basesystem 15 SP7 SUSE Linux Enterprise Module for Server Applications 15 SP7 grub2-2.12-150700.19.3.1 grub2-arm64-efi-2.12-150700.19.3.1 grub2-arm64-efi-debug-2.12-150700.19.3.1 grub2-arm64-efi-extras-2.12-150700.19.3.1 grub2-branding-upstream-2.12-150700.19.3.1 grub2-i386-efi-2.12-150700.19.3.1 grub2-i386-efi-debug-2.12-150700.19.3.1 grub2-i386-efi-extras-2.12-150700.19.3.1 grub2-i386-pc-2.12-150700.19.3.1 grub2-i386-pc-debug-2.12-150700.19.3.1 grub2-i386-pc-extras-2.12-150700.19.3.1 grub2-i386-xen-2.12-150700.19.3.1 grub2-i386-xen-debug-2.12-150700.19.3.1 grub2-i386-xen-extras-2.12-150700.19.3.1 grub2-powerpc-ieee1275-2.12-150700.19.3.1 grub2-powerpc-ieee1275-debug-2.12-150700.19.3.1 grub2-powerpc-ieee1275-extras-2.12-150700.19.3.1 grub2-s390x-emu-2.12-150700.19.3.1 grub2-s390x-emu-debug-2.12-150700.19.3.1 grub2-s390x-emu-extras-2.12-150700.19.3.1 grub2-snapper-plugin-2.12-150700.19.3.1 grub2-systemd-sleep-plugin-2.12-150700.19.3.1 grub2-x86_64-efi-2.12-150700.19.3.1 grub2-x86_64-efi-debug-2.12-150700.19.3.1 grub2-x86_64-efi-extras-2.12-150700.19.3.1 grub2-x86_64-xen-2.12-150700.19.3.1 grub2-x86_64-xen-debug-2.12-150700.19.3.1 grub2-x86_64-xen-extras-2.12-150700.19.3.1 grub2-2.12-150700.19.3.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP7 grub2-arm64-efi-2.12-150700.19.3.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP7 grub2-i386-pc-2.12-150700.19.3.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP7 grub2-powerpc-ieee1275-2.12-150700.19.3.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP7 grub2-s390x-emu-2.12-150700.19.3.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP7 grub2-snapper-plugin-2.12-150700.19.3.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP7 grub2-systemd-sleep-plugin-2.12-150700.19.3.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP7 grub2-x86_64-efi-2.12-150700.19.3.1 as a component of SUSE Linux Enterprise Module for Basesystem 15 SP7 grub2-x86_64-xen-2.12-150700.19.3.1 as a component of SUSE Linux Enterprise Module for Server Applications 15 SP7 A flaw was found in systems utilizing LUKS-encrypted disks with GRUB configured for TPM-based auto-decryption. When GRUB is set to automatically decrypt disks using keys stored in the TPM, it reads the decryption key into system memory. If an attacker with physical access can corrupt the underlying filesystem superblock, GRUB will fail to locate a valid filesystem and enter rescue mode. At this point, the disk is already decrypted, and the decryption key remains loaded in system memory. This scenario may allow an attacker with physical access to access the unencrypted data without any further authentication, thereby compromising data confidentiality. Furthermore, the ability to force this state through filesystem corruption also presents a data integrity concern. CVE-2025-4382 SUSE Linux Enterprise Module for Basesystem 15 SP7:grub2-2.12-150700.19.3.1 SUSE Linux Enterprise Module for Basesystem 15 SP7:grub2-arm64-efi-2.12-150700.19.3.1 SUSE Linux Enterprise Module for Basesystem 15 SP7:grub2-i386-pc-2.12-150700.19.3.1 SUSE Linux Enterprise Module for Basesystem 15 SP7:grub2-powerpc-ieee1275-2.12-150700.19.3.1 SUSE Linux Enterprise Module for Basesystem 15 SP7:grub2-s390x-emu-2.12-150700.19.3.1 SUSE Linux Enterprise Module for Basesystem 15 SP7:grub2-snapper-plugin-2.12-150700.19.3.1 SUSE Linux Enterprise Module for Basesystem 15 SP7:grub2-systemd-sleep-plugin-2.12-150700.19.3.1 SUSE Linux Enterprise Module for Basesystem 15 SP7:grub2-x86_64-efi-2.12-150700.19.3.1 SUSE Linux Enterprise Module for Server Applications 15 SP7:grub2-x86_64-xen-2.12-150700.19.3.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-202501747-1/ https://www.suse.com/security/cve/CVE-2025-4382.html CVE-2025-4382 https://bugzilla.suse.com/1242971 SUSE Bug 1242971