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.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-2789-1 | squashfs-tools security update |
Debian DSA |
DSA-4987-1 | squashfs-tools security update |
EUVD |
EUVD-2021-28223 | 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. |
Ubuntu USN |
USN-5078-1 | Squashfs-Tools vulnerability |
Ubuntu USN |
USN-5078-2 | Squashfs-Tools vulnerabilities |
Ubuntu USN |
USN-5078-3 | Squashfs-Tools vulnerability |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-04T02:59:31.057Z
Reserved: 2021-09-14T00:00:00
Link: CVE-2021-41072
No data.
Status : Modified
Published: 2021-09-14T01:15:07.747
Modified: 2024-11-21T06:25:22.970
Link: CVE-2021-41072
OpenCVE Enrichment
No data.
Debian DLA
Debian DSA
EUVD
Ubuntu USN