CVE-2011-3247

Desbordamiento de entero en Apple QuickTime anterior a v7.7.1 en Windows permite a atacantes remotos ejecutar código arbitrario o causar una denegación de servicio (caída de aplicación) a través de un archivo PICT creado.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple's QuickTime Player. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within how the application parses a specific opcode within a PCT file. When resizing a heap buffer, the application will use a signed word read from the file to calculate the resulting size. This can be used to force the target buffer to be of an undersized length. Usage of this buffer will result in a buffer overflow in the context of the application.