Mozilla: Memory corruption with malicious NPAPI plugin (MFSA 2016-31)

The nsNPObjWrapper::GetNewOrUsed function in dom/plugins/base/nsJSNPRuntime.cpp in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7 allows remote attackers to execute arbitrary code or cause a denial of service invalid pointer dereference and memory corruption via a crafted NPAPI plug...