CVE-2014-1564

Mozilla Firefox anterior a 32.0, Firefox ESR 31.x anterior a 31.1 y Thunderbird 31.x anterior a 31.1 no inicializa debidamente la memoria para la renderización GIF, lo que permite a atacantes remotos obtener información sensible de la memoria de procesos a través de secuencias de comandos web manipuladas que interactúan con un elemento CANVAS asociado con un imagen GIF malformado.

Jan de Mooij, Christian Holler, Karl Tomlinson, Randell Jesup, Gary Kwong, Jesse Ruderman and JW Wang discovered multiple memory safety issues in Thunderbird. If a user were tricked in to opening a specially crafted message with scripting enabled, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Thunderbird. Abhishek Arya discovered a use-after-free during DOM interactions with SVG. If a user were tricked in to opening a specially crafted message with scripting enabled, an attacker could potentially exploit this to cause a denial of service via application crash or execute arbitrary code with the privileges of the user invoking Thunderbird. Various other issues were also addressed.