CVE-2013-4232

Una vulnerabilidad de uso de la memoria previamente liberada en la función t2p_readwrite_pdf_image en el archivo tools/tiff2pdf.c en libtiff versión 4.0.3, permite a los atacantes remotos causar una denegación de servicio (bloqueo de aplicación) o posiblemente ejecutar código arbitrario por medio de una imagen TIFF diseñada.

Pedro Ribeiro discovered that LibTIFF incorrectly handled certain malformed images when using the gif2tiff tool. If a user or automated system were tricked into opening a specially crafted GIF image, a remote attacker could crash the application, leading to a denial of service, or possibly execute arbitrary code with user privileges. This issue only affected Ubuntu 10.04 LTS, Ubuntu 12.04 LTS, Ubuntu 12.10 and Ubuntu 13.10. Pedro Ribeiro discovered that LibTIFF incorrectly handled certain malformed images when using the tiff2pdf tool. If a user or automated system were tricked into opening a specially crafted TIFF image, a remote attacker could crash the application, leading to a denial of service, or possibly execute arbitrary code with user privileges. This issue only affected Ubuntu 10.04 LTS, Ubuntu 12.04 LTS, Ubuntu 12.10 and Ubuntu 13.10. Various other issues were also addressed.