| 제목 | GNU cramfs-tools below v2.2 Symlink Following |
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| 설명 | 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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| 원천 | ⚠️ https://github.com/npitre/cramfs-tools/issues/13 |
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| 사용자 | nich0las (UID 51709) |
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| 제출 | 2026. 04. 24. AM 04:52 (2 개월 ago) |
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| 모더레이션 | 2026. 05. 17. AM 11:59 (23 days later) |
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| 상태 | 수락 |
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| VulDB 항목 | 364408 [npitre cramfs-tools 까지 2.2 cramfsck.c change_file_status 권한 상승] |
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| 포인트들 | 20 |
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