Debian Security Advisory
DLA-2752-1 squashfs-tools -- LTS security update
- Date Reported:
- 31 Aug 2021
- Affected Packages:
- 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