CVE-2025-59378

Severity CVSS v4.0:

Pending analysis

Type:

CWE-669 Incorrect Resource Transfer Between Spheres

Publication date:

15/09/2025

Last modified:

15/09/2025

Description

In guix-daemon in GNU Guix before 1618ca7, a content-addressed-mirrors file can be written to create a setuid program that allows a regular user to gain the privileges of the build user that runs it (even after the build has ended).

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.70 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None

Base Score 3.x

5.70

Severity 3.x

MEDIUM

References to Advisories, Solutions, and Tools

https://codeberg.org/guix/guix/commit/1618ca7aa2ee8b6519ee9fd0b965e15eca2bfe45
https://guix.gnu.org/en/blog/2025/privilege-escalation-vulnerability-2025-2/