Memory Overflow IF A PROGRAM ASSIGNS A VALUE TO A VARIABLE THAT WON'T FIT IN THE MEMORY RESERVED FOR THAT VARIABLE... SOME LANGUAGES (JAVA) LOOK FOR EXTRA SPACE ELSEWHERE IN MEMORY. SOME LANGUAGES (PASCAL) NOTICE THE PROBLEM AND KILL THE PROGRAM. OTHER LANGUAGES (C) ASSUME THE PROGRAMMER KNOWS BEST AND JUST USE BYTES AFTER THE AREA RESERVED FOR THE VARIABLE BEING CHANGED.

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This page is part of a section of lecture slides related to " The Internet Worm " within the topic "Computer Security: A Case Study?". Other slides within this section and other sections of slides for the topic "Computer Security: A Case Study?" can be accessed using the links below. Paranoia Raising Some Sample Security Problems The Internet Worm The Internet Worm What was "The Worm"? Finding Machine Names How the Worm Broke in Password Guessing The SENDMAIL "Trap Door" The Finger Server Bug Computer Memory Organization Computer Memory and Program Variables Memory Overflow The Finger Bug It Couldn't Happen Again! Could it?