7.0
Élevée
CVE-2026-53612 util-linux is a random collection of Linux utilities
Description
util-linux is a random collection of Linux utilities. In util-linux 2.39 through 2.41.4 and 2.42 through 2.42.1, the SUID `mount` utility's `hook_owner.c` post-mount hook performs path-based `chmod()` and `lchown()` operations on a previously validated mount target. A local low-privileged user authorized by an `/etc/fstab` entry with `user` or `users` and an `X-mount.mode`, `X-mount.owner`, or `X-mount.group` option can use `renameat2(RENAME_EXCHANGE)` to race a writable ancestor of the target and redirect the privileged ownership or mode change to a root-owned path, potentially gaining root privileges. This issue is fixed in 2.41.5 and 2.42.2.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| util-linux 2.42 | 2.42 → < 2.42.2 | 2.42.2 |
| util-linux 2.39 | 2.39 → < 2.41.5 | 2.41.5 |
Références
- github.com github.com
- github.com github.com
- github.com github.com
- github.com github.com
- github.com github.com
- github.com github.com
- github.com github.com
Chronologie
- Publiée
- Dernière modification
Autres CVE de util-linux
Les 7 CVE de util-linux →
CVE-2026-53615
util-linux is a random collection of Linux utilities
8.0
Élevée
CVE-2026-53614
util-linux is a random collection of Linux utilities
7.0
Élevée
CVE-2026-53613
util-linux is a random collection of Linux utilities
7.0
Élevée
CVE-2026-76642
util-linux versions through 2.41.5 and 2.42.2 fail to check mount helper exit status before running post-mount hooks,…
8.5
Élevée