VDB
ALPINE-CVE-2021-41072
ALPINE-CVE-2021-41072
PUBLISHED
CVSS 8.100000381469727 HIGH
squashfs_opendir in unsquash-2.c in Squashfs-Tools 4.5 allows Directory Traversal, a different vulnerability than CVE-2021-40153. A squashfs filesystem that has been crafted to include a symbolic link and then contents under the same filename in a filesystem can cause unsquashfs to first create the symbolic link pointing outside the expected directory, and then the subsequent write operation will cause the unsquashfs process to write through the symbolic link elsewhere in the filesystem.
Risk Scores
CVSS v3.1
8.100000381469727
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.21 | squashfs-tools | 4.0-r0, 4.0-r1, 4.1-r0 |
| Alpine:v3.17 | squashfs-tools | 4.3-r0, 0, 4.0-r0 |
| Alpine:v3.15 | squashfs-tools | 4.2-r2, 4.0-r0, 4.1-r0 |
| Alpine:v3.19 | squashfs-tools | 4.5-r0, 4.0-r0, 4.0-r1 |
| Alpine:v3.22 | squashfs-tools | 4.0-r1, 0, 4.0-r1 |
| Alpine:v3.14 | squashfs-tools | 4.0-r0, 0, 4.0-r1 |
| Alpine:v3.18 | squashfs-tools | 4.5-r0, 4.0-r1, 0 |
| Alpine:v3.23 | squashfs-tools | 4.5-r0, 4.0-r0, 4.1-r0 |
| Alpine:v3.20 | squashfs-tools | 0, 4.3-r2, 4.5-r0 |
| Alpine:v3.16 | squashfs-tools | 0, 4.5-r0, 4.4-r1 |
Timeline
- Sep 14, 2021 CVE Published
- Dec 3, 2025 CVE Updated
- Apr 30, 2026 Distribution Patch