DEBIAN-CVE-2021-41072

Source
https://security-tracker.debian.org/tracker/CVE-2021-41072
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-41072.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2021-41072
Upstream
Published
2021-09-14T01:15:07Z
Modified
2025-09-30T05:16:24.838720Z
Severity
  • 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:11 / squashfs-tools

Package

Name
squashfs-tools
Purl
pkg:deb/debian/squashfs-tools?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.4-2+deb11u2

Affected versions

1:4.*

1:4.4-2
1:4.4-2+deb11u1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:12 / squashfs-tools

Package

Name
squashfs-tools
Purl
pkg:deb/debian/squashfs-tools?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.5-3

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / squashfs-tools

Package

Name
squashfs-tools
Purl
pkg:deb/debian/squashfs-tools?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.5-3

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:14 / squashfs-tools

Package

Name
squashfs-tools
Purl
pkg:deb/debian/squashfs-tools?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:4.5-3

Ecosystem specific

{
    "urgency": "not yet assigned"
}