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 out-of-bounds read vulnerability. A flaw is present in the applications, which fail to properly implement XSLT implementation. Successful exploitation could allow attackers to obtain sensitive information.