CVE-2025-4382

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Source
https://nvd.nist.gov/vuln/detail/CVE-2025-4382
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-4382.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-4382
Related
Published
2025-05-09T12:15:33Z
Modified
2025-05-12T18:49:32.829379Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:11 / grub2

Package

Name
grub2
Purl
pkg:deb/debian/grub2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.04-20
2.06-1
2.06-2
2.06-2+hurd.1
2.06-2+hurd.2
2.06-2+hurd.3
2.06-2+hurd.4
2.06-2+hurd.5
2.06-2+hurd.6
2.06-2+hurd.7
2.06-2+hurd.8
2.06-3~deb10u1
2.06-3~deb10u2
2.06-3~deb10u3
2.06-3~deb10u4
2.06-3~deb11u1
2.06-3~deb11u2
2.06-3~deb11u4
2.06-3~deb11u5
2.06-3~deb11u6
2.06-3
2.06-4
2.06-4+hurd.1
2.06-5
2.06-6
2.06-7
2.06-8
2.06-8+hurd.1
2.06-8.1
2.06-9
2.06-10
2.06-11
2.06-12
2.06-13
2.06-13+hurd.1
2.06-13+hurd.2
2.06-14
2.12~rc1-1
2.12~rc1-2
2.12~rc1-3
2.12~rc1-6
2.12~rc1-7
2.12~rc1-8
2.12~rc1-9
2.12~rc1-10
2.12~rc1-11
2.12~rc1-12
2.12~rc1-13
2.12-1~bpo12+1
2.12-1
2.12-1.1
2.12-2~deb13u1
2.12-2
2.12-3
2.12-4
2.12-5
2.12-5+hurd.1
2.12-6
2.12-7

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / grub2

Package

Name
grub2
Purl
pkg:deb/debian/grub2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.06-13
2.06-13+deb12u1
2.06-13+hurd.1
2.06-13+hurd.2
2.06-14
2.12~rc1-1
2.12~rc1-2
2.12~rc1-3
2.12~rc1-6
2.12~rc1-7
2.12~rc1-8
2.12~rc1-9
2.12~rc1-10
2.12~rc1-11
2.12~rc1-12
2.12~rc1-13
2.12-1~bpo12+1
2.12-1
2.12-1.1
2.12-2~deb13u1
2.12-2
2.12-3
2.12-4
2.12-5
2.12-5+hurd.1
2.12-6
2.12-7

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / grub2

Package

Name
grub2
Purl
pkg:deb/debian/grub2?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.06-13
2.06-13+deb13u1
2.06-13+hurd.1
2.06-13+hurd.2
2.06-14
2.12~rc1-1
2.12~rc1-2
2.12~rc1-3
2.12~rc1-6
2.12~rc1-7
2.12~rc1-8
2.12~rc1-9
2.12~rc1-10
2.12~rc1-11
2.12~rc1-12
2.12~rc1-13
2.12-1~bpo12+1
2.12-1
2.12-1.1
2.12-2~deb13u1
2.12-2
2.12-3
2.12-4
2.12-5
2.12-5+hurd.1
2.12-6
2.12-7

Ecosystem specific 

{
    "urgency": "not yet assigned"
}