elf_compress.c in elfutils 0.168 does not validate the zlib compression factor, which allows remote attackers to cause a denial of service (memory consumption) via a crafted ELF file.
https://usn.ubuntu.com/3670-1/
https://security.gentoo.org/glsa/201710-10
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00052.html