CVE-2015-4478

Vulnerabilidad en Mozilla Firefox en versiones anteriores a 40.0 y Firefox ESR 38.x en versiones anteriores a 38.2, no impone ciertos requerimientos ECMAScript 6 sobre las propiedades del objeto de JavaScript, lo que permite a atacantes remotos evadir la Same Origin Policy a través de un parámetro reviver del método JSON.parse.

USN-2702-1 fixed vulnerabilities in Firefox. This update provides the corresponding updates for Ubufox. Gary Kwong, Christian Holler, Byron Campen, Tyson Smith, Bobby Holley, Chris Coulson, and Eric Rahm 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. Aki Helin discovered an out-of-bounds read when playing malformed MP3 content in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain sensitive information, 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.