Gnome gdk-pixbuf 2.36.8 and older is vulnerable to several integer overflow in the gif_get_lzw function resulting in memory corruption and potential code execution
https://www.debian.org/security/2018/dsa-4088
https://usn.ubuntu.com/3532-1/
https://security.gentoo.org/glsa/201804-14
https://lists.debian.org/debian-lts-announce/2018/01/msg00007.html