The host is installed with Mozilla Firefox 4.x through 12.0, Firefox ESR 10.x before 10.0.5, Thunderbird 5.0 through 12.0, Thunderbird ESR 10.x before 10.0.5, or SeaMonkey before 2.10 and is prone to denial of service vulnerability. A flaw is present in the applications, which fail to handle the ASN.1 decoder in the QuickDER decoder in Mozilla Network Security Services. Successful exploitation cou ...