I use ubuntu 12.04. I know that from a security point of view, it is a bad idea to enable UPnP on a router. But, it seems some UPnP related packages are installed on my system. I don't know how they got there as I definitely did not install them.
Running the command
dpkg -l | grep -i upnp
on my system gives the output:
ii libgupnp-1.0-4 0.18.1-2 GObject-based library for UPnP
ii libgupnp-igd-1.0-4 0.2.1-2 library to handle UPnP IGD port mapping
ii libminiupnpc8 1.6-3ubuntu1 UPnP IGD client lightweight library
ii libupnp3 1:1.6.6-5.1ubuntu0.12.04.1 Portable SDK for UPnP Devices, version 1.6 (shared libraries)
Why are these packages there on my system? Are any of the above four UPnP related packages present on my ubuntu 12.04 system a security threat to my ubuntu 12.04 system?