| Titel | GNU cramfs-tools below v2.2 Symlink Following |
|---|
| Beschreibung | GNU cramfs-tools is a set of utilities for managing the Cramfs (Compressed ROM File System), a lightweight, read-only Linux file system optimized for space efficiency and low memory usage. It includes mkcramfs/mkfs.cramfs to create Cramfs images from directories, and cramfsck to verify integrity or extract contents.
cramfs-tools cramfsck contains a hostile-prestate filesystem issue in continue-on-error mode (-c): if the chosen extraction directory already exists as a symlink, cramfsck -x records the mkdir() failure but still continues extraction and performs filesystem writes through the symlink target, outside the intended destination directory.
This aligns with CWE-59: Improper Link Resolution Before File Access. |
|---|
| Quelle | ⚠️ https://github.com/npitre/cramfs-tools/issues/13 |
|---|
| Benutzer | nich0las (UID 51709) |
|---|
| Einreichung | 24.04.2026 04:52 (vor 6 Monaten) |
|---|
| Moderieren | 17.05.2026 11:59 (23 days later) |
|---|
| Status | Akzeptiert |
|---|
| VulDB Eintrag | 364408 [npitre cramfs-tools bis 2.2 cramfsck.c change_file_status erweiterte Rechte] |
|---|
| Punkte | 20 |
|---|