CVE-2026-33945
CVE-2026-33945 · Abitrary file write through systemd-creds option
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
Incus is a system container and virtual machine manager. Incus instances have an option to provide credentials to systemd in the guest. For containers, this is handled through a shared directory. Prior to version 6.23.0, an attacker can set a configuration key named something like `systemd.credential.../../../../../../root/.bashrc` to cause Incus to write outside of the `credentials` directory associated with the container. This makes use of the fact that the Incus syntax for such credentials is `systemd.credential.XYZ` where `XYZ` can itself contain more periods. While it's not possible to read any data this way, it's possible to write to arbitrary files as root, enabling both privilege escalation and denial of service attacks. Version 6.23.0 fixes the issue.
CVSS 10.0 · Crítica · EPSS 0,5% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: system
Productos y versiones afectados
incus
- Versiones
- < 6.23.0: Afectada
Sin corrección publicada
incus Debian:14
- Versiones
- 6.0.4-2
- 6.0.4-3
- 6.0.5-1
- 6.0.5-2
- 6.0.5-3
- 6.0.5-4
- 6.0.5-5
- 6.0.5-6
- 6.0.5-7
- 6.0.5-8
- 6.0.6-1
- Intervalos de versiones afectados
- ECOSYSTEM: < 6.0.6-2
Actualiza a 6.0.6-2
incus Ubuntu:Pro:24.04:LTS
- Versiones
- 0.4-1ubuntu1
- 0.5.1-1
- 0.5.1-3
- 0.6-1
- 6.0.0-1
- 6.0.0-1ubuntu0.1
- 6.0.0-1ubuntu0.2
- 6.0.0-1ubuntu0.2+esm1
- 6.0.0-1ubuntu0.3
- 6.0.0-1ubuntu0.3+esm1
- 6.0.0-1ubuntu0.3+esm2
- 6.0.0-1ubuntu0.3+esm3
- Intervalos de versiones afectados
- ECOSYSTEM: (−∞, +∞)
Sin corrección publicada
incus Ubuntu:25.10
- Versiones
- 6.0.3-4
- 6.0.4-2
- Intervalos de versiones afectados
- ECOSYSTEM: (−∞, +∞)
Sin corrección publicada
incus Ubuntu:26.10
- Versiones
- 6.0.5-8
- 7.0.1-5
- Intervalos de versiones afectados
- ECOSYSTEM: (−∞, +∞)
Sin corrección publicada
incus Ubuntu:Pro:26.04:LTS
- Versiones
- 6.0.4-2
- 6.0.5-8
- 6.0.5-8ubuntu0.26.04.1~esm1
- Intervalos de versiones afectados
- ECOSYSTEM: (−∞, +∞)
Sin corrección publicada