Gnu Guix vulnerabilities

3 vulnerabilities

Known vulnerabilities in Gnu Guix, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

5.5CVE-2021-27851debianguix+4
EPSS score
0.33%
A security vulnerability that can lead to local privilege escalation has been found in ’guix-daemon’. It affects multi-user setups in which ’guix-daemon’ runs locally. The attack consists in having an unprivileged user spawn a build process, for instance with `guix build`, that makes its build directory world-writable. The user then creates a hardlink to a root-owned file such as /etc/shadow in that build directory. If the user passed the --keep-failed option and the build eventually fails, the daemon changes ownership of the whole build tree, including the hardlink, to the user. At that point, the user has write access to the target file. Versions after and including v0.11.0-3298-g2608e40988, and versions prior to v1.2.0-75109-g94f0312546 are vulnerable.5.7CVE-2025-59378debianguix+2
EPSS score
0.14%
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).7.8CVE-2019-18192gnuguix
EPSS score
0.34%
GNU Guix 1.0.1 allows local users to gain access to an arbitrary user's account because the parent directory of the user-profile directories is world writable, a similar issue to CVE-2019-17365.