The host is installed with Mozilla Firefox before 45.0 or Mozilla Thunderbird 38.x before 38.7 and is prone to a denial of service vulnerability. A flaw is present in the browser engine in Mozilla Firefox, which fails to handle vectors related to js/src/jit/arm/Assembler-arm.cpp, and unknown other vectors. Successful exploitation allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code.