In ZZIPlib 0.13.67, there is a bus error caused by loading of a misaligned address in the zzip_disk_findfirst function of zzip/mmapped.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted zip file.
https://usn.ubuntu.com/3699-1/
https://lists.debian.org/debian-lts-announce/2020/06/msg00029.html