CVE-2014-2020

ext/gd/gd.c en PHP 5.5.x anterior a 5.5.9 no comprueba tipos de datos, lo que podría permitir a atacantes remotos obtener información sensible mediante el uso de (1) una cadena o (2) un tipo de dato array en lugar de un tipo de dato numérico, tal y como se demostró mediante la llamada de la función imagecrop con una cadena para el valor de dimensión x, una vulnerabilidad diferente a CVE-2013-7226.

Bernd Melchers discovered that PHP's embedded libmagic library incorrectly handled indirect offset values. An attacker could use this issue to cause PHP to consume resources or crash, resulting in a denial of service. It was discovered that PHP incorrectly handled certain values when using the imagecrop function. An attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service, obtain sensitive information, or possibly execute arbitrary code. This issue only affected Ubuntu 13.10. Various other issues were also addressed.