Integer overflow in the create_bits function in pixman-bits-image.c in Pixman before 0.32.6 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via large height and stride values.Referenceshttps://bugs.freedesktop.org/show_bug.cgi?id=69014https://lists.freedesktop.org/archives/pixman/2014-April/003244.htmlhttp://www.openwall.com/lists/oss-security/2016/02/24/13https://cgit.freedesktop.org/pixman/commit/?id=857e40f3d2bc2cfb714913e0cd7e6184cf69aca3https://bugzilla.redhat.com/show_bug.cgi?id=972647http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.htmlhttp://www.openwall.com/lists/oss-security/2016/02/24/15https://lists.x.org/archives/xorg-announce/2014-July/002452.htmlhttp://www.ubuntu.com/usn/USN-2918-1http://www.debian.org/security/2016/dsa-3525