Multiple integer overflows in X.org libXrender 0.9.7 and earlier allow X servers to trigger allocation of insufficient memory and a buffer overflow via vectors related to the (1) XRenderQueryFilters, (2) XRenderQueryFormats, and (3) XRenderQueryPictIndexValues functions.
lists.fedoraproject.org/pipermail/package-announce/2013-May/106862.html
lists.opensuse.org/opensuse-updates/2013-06/msg00141.html
www.debian.org/security/2013/dsa-2677
www.openwall.com/lists/oss-security/2013/05/23/3
www.securityfocus.com/bid/60132
www.ubuntu.com/usn/USN-1863-1
www.x.org/wiki/Development/Security/Advisory-2013-05-23