The host is installed with Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 and is prone to an use-after-free vulnerability. A flaw is present in the applications, which fail to handle unspecified vectors. Successful exploitation could allow attackers to execute arbitrary code or crash the service.