The updateDevice function in minissdpd.c in MiniUPnP MiniSSDPd 1.4 and 1.5 allows a remote attacker to crash the process due to a Use After Free vulnerability.
https://www.vdoo.com/blog/security-issues-discovered-in-miniupnp
https://lists.debian.org/debian-lts-announce/2019/05/msg00037.html
https://github.com/miniupnp/miniupnp/commit/cd506a67e174a45c6a202eff182a712955ed6d6f