A miniupnpc security update has been released for Debian GNU/Linux 8 LTS to address a a denial of service issue.

DLA 2197-1: miniupnpc security update

Package : miniupnpc
Version : 1.9.20140610-2+deb8u2
CVE ID : CVE-2017-8798

It was discovered that there was a integer signedness error in the
miniupnpc UPnP client that could allow remote attackers to cause a denial
of service attack.

For Debian 8 "Jessie", this problem has been fixed in
version 1.9.20140610-2+deb8u2.

We recommend that you upgrade your miniupnpc packages.

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