The host is installed with Mozilla Firefox before 19.0, Firefox ESR 17.x before 17.0.3, Thunderbird before 17.0.3, Thunderbird ESR 17.x before 17.0.3 or SeaMonkey before 2.16 and is prone to use-after-free vulnerability. A flaw is present in the applications, which fail to handle a crafted document that uses Cascading Style Sheets (CSS) -moz-column-* properties. Successful exploitation allows remo ...