CVE-2012-1571

archivo antes de v5.11 y libmagic permite a atacantes remotos provocar una denegación de servicio (caída) a través de un archivo de documento elaborado compuesto (CDF) que activa (1) una lectura fuera de límites o (2) una desreferencia de puntero no válido.

A denial of service flaw was found in the way the File Information (fileinfo) extension parsed certain Composite Document Format (CDF) files. A remote attacker could use this flaw to crash a PHP application using fileinfo via a specially crafted CDF file.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server. PHP's fileinfo module provides functions used to identify a particular file according to the type of data contained by the file. Multiple denial of service flaws were found in the way the File Information extension parsed certain Composite Document Format files. A remote attacker could use either of these flaws to crash a PHP application using fileinfo via a specially crafted CDF file. Two denial of service flaws were found in the way the File Information extension handled indirect and search rules. A remote attacker could use either of these flaws to cause a PHP application using fileinfo to crash or consume an excessive amount of CPU.