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CVE-2021-40153

nvd nist
Published: Aug 27, 2021Modified: Nov 21, 2024

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8.1
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H
Exploitability: 2.8 / Impact: 5.2
Source: NVD

Description

squashfs_opendir in unsquash-1.c in Squashfs-Tools 4.5 stores the filename in the directory entry; this is then used by unsquashfs to create the new file during the unsquash. The filename is not validated for traversal outside of the destination directory, and thus allows writing to locations outside of the destination.

Affected (7)

Show all products
Squashfs Tools Project: Squashfs Tools · Fedoraproject: Fedora · Debian: Debian Linux · Redhat: Enterprise Linux
Squashfs Tools Project
1 product
Squashfs Tools
Fedoraproject
1 product
Fedora
Debian
1 product
Debian Linux
Redhat
1 product
Enterprise Linux
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Squashfs Tools
Version 4.5
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Fedora
Version 34
Configuration C
2 vulnerable
Vulnerable SoftwareAffected Versions
Debian
Debian Linux
Version 10.0
Debian Linux
Version 9.0
Configuration D
2 vulnerable
Vulnerable SoftwareAffected Versions
Redhat
Enterprise Linux
Version 7.0
Enterprise Linux
Version 8.0
Configuration E
1 vulnerable
Vulnerable SoftwareAffected Versions
Fedora
Version 33

Related CWEs

CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (16)

Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
PatchThird Party Advisory
Source: cve@mitre.org
ExploitThird Party Advisory
Source: cve@mitre.org
Mailing ListThird Party Advisory
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.