Computer Memory and Program Variables VARIABLES USED IN A LANGUAGE LIKE JAVA ARE AUTOMATICALLY ASSOCIATED WITH MEMORY UNITS AS PART OF PROCESSING BY A SYSTEM LIKE METROWERKS INFORMATION REQUIRING MORE THAN EIGHT BINARY DIGITS IS STORED IN BYTES WITH CONSECUTIVE ADDRESSES. server.sendLine("RETR " + msgCount); do { msg = server.getResponse(); start = msg.indexOf("From:"); end = msg.indexOf("\n",start); . . . msgCount = msgCount+1; server.sendLine("RETR "+msgCount); status = server.getLine(); } while ( status.startsWith("+OK") )

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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?