An issue was discovered in AdvanceCOMP through 2.1. A NULL pointer dereference exists in the function be_uint32_read() located in endianrw.h. It can be triggered by sending a crafted file to a binary. It allows an attacker to cause a Denial of Service (Segmentation fault) or possibly have unspecified other impact when a victim opens a specially crafted file.
https://sourceforge.net/p/advancemame/bugs/271/
https://lists.debian.org/debian-lts-announce/2021/12/msg00034.html