An attacker exploits a data structure shared between multiple applications
						or an application pool to affect application behavior. Data may be shared
						between multiple applications or between multiple threads of a single
						application. Data sharing is usually accomplished through mutual access to a
						single memory location. If an attacker can manipulate this shared data
						(usually by co-opting one of the applications or threads) the other
						applications or threads using the shared data will often continue to trust
						the validity of the compromised shared data and use it in their
						calculations. This can result in invalid trust assumptions, corruption of
						additional data through the normal operations of the other users of the
						shared data, or even cause a crash or compromise of the sharing
						applications.