CVE-2014-1580

Mozilla Firefox anterior a 33.0 no inicializa debidamente la memoria para los imágenes GIF, lo que permite a atacantes remotos obtener información sensible de la memoria de procesos a través de una página web manipulada que provoca una secuencia de operaciones de renderización para datos GIF truncados dentro de un elemento CANVAS.

Bobby Holley, Christian Holler, David Bolter, Byron Campen, Jon Coppeard, Carsten Book, Martijn Wargers, Shih-Chiang Chien, Terrence Cole and Jeff Walden discovered multiple memory safety issues in Firefox. If a user were tricked in to opening a specially crafted website, 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 Firefox. Atte Kettunen discovered a buffer overflow during CSS manipulation. If a user were tricked in to opening a specially crafted website, 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 Firefox. Various other issues were also addressed.