An unrar-free security update has been released for Debian GNU/Linux 9 LTS a directory traversal vulnerability.

DLA 2567-1: unrar-free security update

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Debian LTS Advisory DLA-2567-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Thorsten Alteholz
February 18, 2021   https://wiki.debian.org/LTS
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Package : unrar-free
Version : 1:0.0.1+cvs20140707-1+deb9u1
CVE ID : CVE-2017-14120 CVE-2017-14121 CVE-2017-14122

Several issues have been found in unrar-free, an unarchiver for .rar files.

CVE-2017-14120

This CVE is related to a directory traversal vulnerability for
RAR v2 archives.

CVE-2017-14121

This CVE is related to NULL pointer dereference flaw triggered
by a specially crafted RAR archive.

CVE-2017-14122

This CVE is related to stack-based buffer over-read.

For Debian 9 stretch, these problems have been fixed in version
1:0.0.1+cvs20140707-1+deb9u1.

We recommend that you upgrade your unrar-free packages.

For the detailed security status of unrar-free please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/unrar-free

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