The host is installed with Mozilla Firefox before 19.0, Thunderbird before 17.0.3, SeaMonkey before 2.16 or Thunderbird ESR, Firefox ESR before 17.0.3 and is prone to out-of-bounds read vulnerability. A flaw is present in the applications, which fail to handle the ClusterIterator::NextCluster function. Successful exploitation allows remote attackers to execute arbitrary code or cause a denial of s ...