An error within the "LibRaw::unpack()" function (src/libraw_cxx.cpp) in LibRaw versions prior to 0.18.7 can be exploited to trigger a NULL pointer dereference.
https://usn.ubuntu.com/3615-1/
https://secuniaresearch.flexerasoftware.com/secunia_research/2018-1/
https://secuniaresearch.flexerasoftware.com/advisories/79000/
https://lists.debian.org/debian-lts-announce/2019/03/msg00036.html
https://github.com/LibRaw/LibRaw/commit/0df5490b985c419de008d32168650bff17128914