Debian Long Term Support / LTS Security Information / 2021 / Security Information -- DLA-2752-1 squashfs-tools

Debian Security Advisory

DLA-2752-1 squashfs-tools -- LTS security update

Date Reported:

31 Aug 2021

Affected Packages:

squashfs-tools

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2021-40153.

More information:

An issue has been found in squashfs-tools, a tool to create and append to squashfs filesystems. As unsquashfs did not validate all filepaths, it would allow writing outside of the original destination.

For Debian 9 stretch, this problem has been fixed in version 1:4.3-3+deb9u2.

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/squashfs-tools

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS