CVE-2011-4517

La función jpc_crg_getparms de libjasper/jpc/jpc_cs.c de JasPer 1.900.1 utiliza un tipo de datos incorrecto durante un cálculo determinado de tamaño, lo que permite a atacantes remotos provocar un desbordamiento de buffer de memoria dinámica y ejecutar código arbitrario, o provocar una denegación de servicio (corrupción de memoria dinámica), a través de un archivo JPEG2000 mal formado.

A heap-based buffer overflow flaw was found in the way JasPer decoded JPEG 2000 compressed image files. An attacker could create a malicious JPEG 2000 compressed image file that, when opened, would cause applications that use JasPer (such as Nautilus) to crash or, potentially, execute arbitrary code.

It was discovered that Ghostscript did not correctly handle memory allocation when parsing certain malformed JPEG-2000 images. If a user or automated system were tricked into opening a specially crafted image, an attacker could cause a denial of service and possibly execute arbitrary code with user privileges. It was discovered that Ghostscript did not correctly handle certain formatting operations when parsing JPEG-2000 images. If a user or automated system were tricked into opening a specially crafted image, an attacker could cause a denial of service and possibly execute arbitrary code with user privileges. Various other issues were also addressed.