Debian Bullseye DSA-4967-1 Critical: File Traversal Issue in Squashfs-Tools
debian
September 4, 2021
Etienne Stalmans discovered that unsquashfs in squashfs-tools, the tools to create and extract Squashfs filesystems, does not validate filenames for traversal outside of the destin...
Topics Covered
Summary
For the oldstable distribution (buster), this problem has been fixed
in version 1:4.3-12+deb10u1.
For the stable distribution (bullseye), this problem has been fixed in
version 1:4.4-2+deb11u1.
We recommend that you upgrade your squashfs-tools packages.
For the detailed security status of squashfs-tools please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/source-package/squashfs-tools
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
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Severity
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Critical
Package: squashfs-tools
CVE ID: CVE-2021-40153
Topics Covered
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