What type of attack is based on sending more data to a target variable than the data can actually hold?

Buffer overflow attacks cram more data into a field or buffer than they can accept, overflowing into other memory locations and either crashing the system or application or potentially allowing code to be inserted into executable locations. Bluesnarfing and bluejacking are both Bluetooth attacks. Cross-site scripting attacks allow attackers to inject scripts into pages viewed by other users.