CVE-2013-1997 – libX11: Multiple Array Index error leading to heap-based OOB write

https://notcve.org/view.php?id=CVE-2013-1997

Multiple buffer overflows in X.org libX11 1.5.99.901 (1.6 RC1) and earlier allow X servers to cause a denial of service (crash) and possibly execute arbitrary code via crafted length or index values to the (1) XAllocColorCells, (2) _XkbReadGetDeviceInfoReply, (3) _XkbReadGeomShapes, (4) _XkbReadGetGeometryReply, (5) _XkbReadKeySyms, (6) _XkbReadKeyActions, (7) _XkbReadKeyBehaviors, (8) _XkbReadModifierMap, (9) _XkbReadExplicitComponents, (10) _XkbReadVirtualModMap, (11) _XkbReadGetNamesReply, (12) _XkbReadGetMapReply, (13) _XimXGetReadData, (14) XListFonts, (15) XListExtensions, and (16) XGetFontPath functions. Multiples desbordamientos de búfer en X.org libX11 v1.5.99.901 (1.6 RC1) y anteriores permite a los servidores X causar una denegación de servicio (por caída del servidor) y posiblemente ejecutar código de su elección a través de valores de índice o de longitud debidamente modificados en las funciones (1) XAllocColorCells, (2) _XkbReadGetDeviceInfoReply, (3) _XkbReadGeomShapes, (4) _XkbReadGetGeometryReply, (5) _XkbReadKeySyms, (6) _XkbReadKeyActions, (7) _XkbReadKeyBehaviors, (8) _XkbReadModifierMap, (9) _XkbReadExplicitComponents, (10) _XkbReadVirtualModMap, (11) _XkbReadGetNamesReply, (12) _XkbReadGetMapReply, (13) _XimXGetReadData, (14) XListFonts, (15) XListExtensions, y (16) XGetFontPath. • http://lists.fedoraproject.org/pipermail/package-announce/2013-May/106781.html http://www.debian.org/security/2013/dsa-2693 http://www.openwall.com/lists/oss-security/2013/05/23/3 http://www.ubuntu.com/usn/USN-1854-1 http://www.x.org/wiki/Development/Security/Advisory-2013-05-23 https://access.redhat.com/security/cve/CVE-2013-1997 https://bugzilla.redhat.com/show_bug.cgi?id=960345 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-122: Heap-based Buffer Overflow •