Execute Disable Bit (EDB) is an
Intel
hardware-based security feature that can help reduce
system exposure to viruses and
malicious code.
EDB allows the
processor to classify areas in
memory where
application
code can or cannot
execute. When a malicious worm
attempts to insert code in the buffer, the processor disables code execution,
preventing damage and worm propagation. To use Execute Disable Bit you must have
a
PC or
server with a processor
with Execute Disable Bit capability and a supporting operating system. EDB-enabled
processors by Intel are indicated by a "J" after the CPU model number.
Execute Disable Bit is abbreviated as EDB (by Intel) or XDB.
