An issue was discovered in LibRaw 0.18.9. There is an out-of-bounds read affecting the X3F property table list implementation in libraw_x3f.cpp and libraw_cxx.cpp.
https://usn.ubuntu.com/3639-1/
https://github.com/LibRaw/LibRaw/issues/144
https://github.com/LibRaw/LibRaw/commit/f0c505a3e5d47989a5f69be2d0d4f250af6b1a6c