- Description
- 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.
- Source
- secalert@redhat.com
- NVD status
- Awaiting Analysis
CVSS 3.1
- Type
- Primary
- Base score
- 5.9
- Impact score
- 5.2
- Exploitability score
- 0.7
- Vector string
- CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Severity
- MEDIUM
- secalert@redhat.com
- CWE-306
- Hype score
- Not currently trending
CVE-2025-4382 GRUB TPM Auto-Decryption Bypass Leading to Unencrypted Data Exposu... https://t.co/PLs6ysZ4f5 Customizable Vulnerability Alerts: https://t.co/U7998fz7yk
@VulmonFeeds
9 May 2025
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CVE-2025-4382 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 key… https://t.co/fKZXJjzGbI
@CVEnew
9 May 2025
439 Impressions
0 Retweets
1 Like
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0 Quotes