CVE-2016-1960

Desbordamiento inferior de entero en la clase nsHtml5TreeBuilder en el intérprete de cadenas HTML5 en Mozilla Firefox en versiones anteriores a 45.0 y Firefox ESR 38.x en versiones anteriores a 38.7 permite a atacantes remotos ejecutar código arbitrario o causar una denegación de servicio (uso después de liberación de memoria) mediante el aprovechamiento del manejo incorrecto de las etiquetas finales, según lo demostrado por el procesamiento incorrecto de SVG, también conocido como ZDI-CAN-3545.

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Mozilla Firefox. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of HTML5 end tags. The issue lies in the failure to check for an index becoming negative, allowing for out-of-bounds indexing. An attacker can leverage this vulnerability to execute code within the context of the current process.

Francis Gabriel discovered a buffer overflow during ASN.1 decoding in NSS. 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. Bob Clary, Christoph Diehl, Christian Holler, Andrew McCreight, Daniel Holbert, Jesse Ruderman, Randell Jesup, Carsten Book, Gian-Carlo Pascutto, Tyson Smith, Andrea Marchesini, and Jukka Jylanki 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. Various other issues were also addressed.