CVE-2007-6427

La extensión XInput de X.Org Xserver versiones anteriores a 1.4.1 permite a atacantes locales o remotos dependientes del contexto ejecutar código de su elección mediante peticiones relativas al intercambio de bytes y corrupción de cabecera dentro d múltiples funciones, vulnerabilidad distinta de CVE-2007-4990.

Multiple overflows were discovered in the XFree86-Misc, XInput-Misc, TOG-CUP, EVI, and MIT-SHM extensions which did not correctly validate function arguments. An authenticated attacker could send specially crafted requests and gain root privileges. It was discovered that the X.org server did not use user privileges when attempting to open security policy files. Local attackers could exploit this to probe for files in directories they would not normally be able to access. It was discovered that the PCF font handling code did not correctly validate the size of fonts. An authenticated attacker could load a specially crafted font and gain additional privileges.