Linux Journal: Buffer Overflow Attacks and Their Countermeasures
Mar 12, 2003, 13:00 (24 Talkback[s])
(Other stories by Sandeep Grover)
"Buffer overflow problems always have been associated with
security vulnerabilities. In the past, lots of security breaches
have occurred due to buffer overflow. This article attempts to
explain what buffer overflow is, how it can be exploited and what
countermeasures can be taken to avoid it.
"Knowledge of C or any other high level language is essential to
this discussion. Basic knowledge of process memory layout is
useful, but not necessary. Also, all the discussions are based on
Linux running on x86 platform. The basic concepts of buffer
overflow, however, are the same no matter what platform and
operating system is used..."