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Linux Distros Unpatched Vulnerability : CVE-2025-4382

medium Nessus Plugin ID 251939

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - 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)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2025-4382

https://security-tracker.debian.org/tracker/CVE-2025-4382

https://ubuntu.com/security/CVE-2025-4382

Plugin Details

Severity: Medium

ID: 251939

File Name: unpatched_CVE_2025_4382.nasl

Version: 1.2

Type: local

Agent: unix

Family: Misc.

Published: 8/19/2025

Updated: 9/1/2025

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: Low

Base Score: 1.9

Temporal Score: 1.4

Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2025-4382

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

Vector: CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:grub2-ppc-modules, p-cpe:/a:debian:debian_linux:grub2, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:centos:centos:grub2-efi-ia32, p-cpe:/a:centos:centos:grub2-ppc64le-modules, cpe:/o:centos:centos:8, p-cpe:/a:canonical:ubuntu_linux:grub2-signed, p-cpe:/a:centos:centos:grub2-pc, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:redhat:enterprise_linux:grub2-tools-extra, p-cpe:/a:centos:centos:grub2-tools-minimal, cpe:/o:centos:centos:7, p-cpe:/a:redhat:enterprise_linux:grub2-pc-modules, p-cpe:/a:redhat:enterprise_linux:grub2-efi-modules, p-cpe:/a:centos:centos:grub2-tools, p-cpe:/a:centos:centos:grub2-ppc64, p-cpe:/a:centos:centos:grub2-efi-aa64-modules, p-cpe:/a:redhat:enterprise_linux:grub2-efi-aa64-cdboot, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:centos:centos:grub2-efi-aa64, p-cpe:/a:centos:centos:grub2-efi-x64-cdboot, p-cpe:/a:centos:centos:grub2-tools-efi, p-cpe:/a:centos:centos:grub2-efi-x64-modules, p-cpe:/a:redhat:enterprise_linux:grub2-efi, p-cpe:/a:centos:centos:grub2-efi, p-cpe:/a:centos:centos:grub2-efi-ia32-cdboot, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:redhat:enterprise_linux:grub2-common, p-cpe:/a:centos:centos:grub2-ppc-modules, p-cpe:/a:centos:centos:grub2-ppc64-modules, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:centos:centos:grub2, cpe:/o:canonical:ubuntu_linux:25.04, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:grub2-ppc64le-modules, p-cpe:/a:centos:centos:grub2-ppc64le, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, p-cpe:/a:centos:centos:grub2-tools-extra, p-cpe:/a:redhat:enterprise_linux:grub2-efi-ia32, p-cpe:/a:redhat:enterprise_linux:grub2-ppc64le, p-cpe:/a:redhat:enterprise_linux:grub2-tools-minimal, p-cpe:/a:centos:centos:grub2-efi-ia32-modules, p-cpe:/a:redhat:enterprise_linux:grub2-efi-x64, p-cpe:/a:redhat:enterprise_linux:grub2-efi-x64-cdboot, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:grub2-efi-aa64-modules, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:redhat:enterprise_linux:grub2, p-cpe:/a:redhat:enterprise_linux:grub2-efi-ia32-cdboot, p-cpe:/a:centos:centos:grub2-efi-x64, p-cpe:/a:centos:centos:grub2-efi-modules, p-cpe:/a:redhat:enterprise_linux:grub2-ppc64, p-cpe:/a:canonical:ubuntu_linux:grub2, p-cpe:/a:redhat:enterprise_linux:grub2-tools, p-cpe:/a:centos:centos:grub2-efi-aa64-cdboot, p-cpe:/a:redhat:enterprise_linux:grub2-efi-aa64, p-cpe:/a:redhat:enterprise_linux:grub2-ppc64-modules, p-cpe:/a:redhat:enterprise_linux:grub2-pc, p-cpe:/a:redhat:enterprise_linux:grub2-efi-x64-modules, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:centos:centos:grub2-common, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:redhat:enterprise_linux:grub2-efi-ia32-modules, p-cpe:/a:centos:centos:grub2-pc-modules, p-cpe:/a:redhat:enterprise_linux:grub2-tools-efi, p-cpe:/a:canonical:ubuntu_linux:grub2-unsigned

Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 5/9/2025

Reference Information

CVE: CVE-2025-4382