Gimp before 2.8.22 allows context-dependent attackers to cause a denial of service (crash) via an ICO file with an InfoHeader containing a Height of zero, a similar issue to CVE-2007-2237.
https://www.gimp.org/news/2017/05/11/gimp-2-8-22-released/
https://git.gnome.org/browse/gimp/commit/?id=323ecb73f7bf36788fb7066eb2d6678830cd5de7