CVE-2013-6424

Integer underflow in the xTrapezoidValid macro in render/picture.h in X.Org allows context-dependent attackers to cause a denial of service (crash) via a negative bottom value.

Integer underflow in the xTrapezoidValid macro in render/picture.h in X.Org allows context-dependent attackers to cause a denial of service (crash) via a negative bottom value.

Underflow de entero en la macro xTrapezoidValid en render/picture.h de X.Org permite a atacantes dependientes de contexto causar una denegación de servicio (crash) a través de un valor mínimo negativo .