CVE-2007-6429

Multiple integer overflows in X.Org Xserver before 1.4.1 allow context-dependent attackers to execute arbitrary code via (1) a GetVisualInfo request containing a 32-bit value that is improperly used to calculate an amount of memory for allocation by the EVI extension, or (2) a request containing values related to pixmap size that are improperly used in management of shared memory by the MIT-SHM extension.

Multiple integer overflows in X.Org Xserver before 1.4.1 allow context-dependent attackers to execute arbitrary code via (1) a GetVisualInfo request containing a 32-bit value that is improperly used to calculate an amount of memory for allocation by the EVI extension, or (2) a request containing values related to pixmap size that are improperly used in management of shared memory by the MIT-SHM extension.

Múltiples desbordamientos de búfer en X.Org Xserver versiones anteriores a 1.4.1 permiten a atacantes locales o remotos dependientes del contexto ejecutar código de su elección mediante (1) una petición GetVisualInfo conteniendo un valor de 32 bits que se utiliza inapropiadamente para calcular una cantidad de memoria para alojamiento por la extensión EVI, ó (2) una petición conteniendo valores relativos al tamaño de pixmap que es inapropiadamente utilizado en la gestión de memoria compartida por la extensión MIT-SHM.