NGSEC StackDefender 2.0 allows attackers to cause a denial of service (system crash) via an invalid address for the BaseAddress parameter to the hooks for the (1) ZwAllocateVirtualMemory or (2) ZwProtectVirtualMemory functions.
NGSEC StackDefender 1.10 allows attackers to cause a denial of service (system crash) via an invalid address for the ObjectAttribues parameter to the hooks for the (1) ZwCreateFile or (2) ZwOpenFile functions.