Why is this a security problem?
•Overflowed data could be anything.
–an integer where “0” means that you can’t access a particular file and and “1” means you can.  A hacker would overwrite the “0” with a “1” and access the file.
–characters like ROOT (a highly privileged users)
–a pointer that tells the program what instructions to execute next.
–Even a minor change could cause the program to crash which can be a security problem (denial-of-service attacks and core dump exploits are very serious).