libupnp, the portable SDK for UPnP Devices allows remote attackers to cause a denial of service (crash) via a crafted SSDP message due to a NULL pointer dereference in the functions FindServiceControlURLPath and FindServiceEventURLPath in genlib/service_table/service_table.c. This crash can be triggered by sending a malformed SUBSCRIBE or UNSUBSCRIBE using any of the attached files.

For Debian 8 Jessie, this problem has been fixed in version 1.6.19+git20141001-1+deb8u2.

We recommend that you upgrade your libupnp 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