GPAC version 0.7.1 and earlier has a buffer overflow vulnerability in the cat_multiple_files function in applications/mp4box/fileimport.c when MP4Box is used for a local directory containing crafted filenames.
https://usn.ubuntu.com/3926-1/
https://lists.debian.org/debian-lts-announce/2019/02/msg00040.html
https://github.com/gpac/gpac/issues/1187
https://github.com/gpac/gpac/commit/35ab4475a7df9b2a4bcab235e379c0c3ec543658