CVE-2013-7328

Múltiples errores de signo de enteros en la función gdImageCrop en ext/gd/gd.c en PHP 5.5.x anterior a 5.5.9 permiten a atacantes remotos causar una denegación de servicio (caída de aplicación) u obtener información sensible a través de una llamada de la función imagecrop con un valor negativo para la dimensión (1) x o (2) y, 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.