Network service interruption via kernel null dereference

Null pointer dereference in Intel AMT and Intel Standard Manageability firmware allows remote attackers to cause a service interrupt over a network. Intel identifies the fault only within the Ring 0 kernel firmware and has not disclosed the triggering request or how the pointer becomes null before dereference. Exploitation requires no authentication or user interaction, but it has high complexity and requires additional attack conditions; the reported consequence is availability loss without confidentiality or integrity impact.