The read_1g function in stream.c in liblrzip.so in lrzip 0.631 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted archive.
https://security.gentoo.org/glsa/202005-01
https://lists.debian.org/debian-lts-announce/2021/08/msg00001.html
https://github.com/ckolivas/lrzip/issues/70
https://blogs.gentoo.org/ago/2017/05/07/lrzip-heap-based-buffer-overflow-write-in-read_1g-stream-c/