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CVE-2021-41072

Public on 2021-09-14
Modified on 2024-01-30
Description

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.

Severity
Medium
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CVSS v3 Base Score
8.1
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core squashfs-tools 2023-07-17 17:40 ALAS2-2023-2152

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
NVD CVSSv2 5.8 AV:N/AC:M/Au:N/C:N/I:P/A:P
NVD CVSSv3 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H