Portable UPnP SDK (aka libupnp) 1.12.1 and earlier 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.
https://lists.debian.org/debian-lts-announce/2021/03/msg00007.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00006.html
https://github.com/pupnp/pupnp/issues/177
https://github.com/pupnp/pupnp/commit/c805c1de1141cb22f74c0d94dd5664bda37398e0
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00033.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00030.html