The fill_xrgb32_lerp_opaque_spans function in cairo-image-compositor.c in cairo before 1.14.2 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a negative span length.Referenceshttps://bugzilla.redhat.com/show_bug.cgi?id=1318977https://cgit.freedesktop.org/cairo/patch/src/cairo-image-compositor.c?id=5c82d91a5e15d29b1489dcb413b24ee7fdf59934http://lists.opensuse.org/opensuse-updates/2016-04/msg00029.htmlhttps://mail.gnome.org/archives/gnome-announce-list/2015-March/msg00047.html
