There is an invalid free in Mapping::DoubleHash::clear in mapping.cpp that leads to a Segmentation fault in sam2p 0.49.4. A crafted input will lead to...

References

• advisory https://lists.debian.org/debian-lts-announce/2018/04/msg00004.html
• report https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=891527
• report https://github.com/pts/sam2p/issues/30