| Título | GNU cramfs-tools below v2.2 Symlink Following |
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| Descripción | 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. |
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| Fuente | ⚠️ https://github.com/npitre/cramfs-tools/issues/13 |
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| Usuario | nich0las (UID 51709) |
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| Sumisión | 2026-04-24 04:52 (hace 6 meses) |
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| Moderación | 2026-05-17 11:59 (23 days later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 364408 [npitre cramfs-tools hasta 2.2 cramfsck.c change_file_status escalada de privilegios] |
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| Puntos | 20 |
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