gtk2 was updated to fix two security issues. These security issues were fixed: - CVE-2015-4491: Integer overflow in the make_filter_table function in pixops/pixops.c in gdk-pixbuf before 2.31.5, allowed remote attackers to execute arbitrary code or cause a denial of service via crafted bitmap dimensions that were mishandled during scaling . - CVE-2015-7674: Fix overflow when scaling GIF files . This non-security issue was fixed: - Add the script which generates gdk-pixbuf64.loaders to the spec file .