CVE-2007-4269

Un desbordamiento de enteros en el componente Networking en Apple Mac OS X versiones 10.4 hasta 10.4.10, permite a usuarios locales ejecutar código arbitrario por medio de un mensaje de AppleTalk Session Protocol (ASP) diseñado en un socket de AppleTalk, que desencadena un desbordamiento de búfer en la región heap de la memoria .

Local exploitation of a heap based buffer overflow in Apple Inc.'s OS X may allow an attacker to execute arbitrary code in kernel context. The vulnerability exists within a function responsible for sending an ASP (AppleTalk Session Protocol) message on an AppleTalk socket. When allocating a buffer, the kernel uses a user provided integer to perform an arithmetic operation that calculates the number of bytes to allocate. This calculation can overflow, leading to the allocation of a buffer of insufficient size. This results in an exploitable heap based buffer overflow within the kernel. iDefense has confirmed the existence of this vulnerability in Mac OS X 10.4.10, Workstation and Server editions. Previous versions may also be affected.