Описание
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).
Список пакетов
SUSE Linux Enterprise Module for Basesystem 15 SP7
SUSE Linux Enterprise Module for Server Applications 15 SP7
Ссылки
- Link for SUSE-SU-2025:01747-1
- E-Mail link for SUSE-SU-2025:01747-1
- SUSE Security Ratings
- SUSE Bug 1237174
- SUSE Bug 1242971
- SUSE CVE CVE-2025-4382 page
Описание
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.
Затронутые продукты
Ссылки
- CVE-2025-4382
- SUSE Bug 1242971