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Countering buffer overflows
This article discusses the top vulnerability in Linux/UNIX systems: buffer overflows. This article first explains what buffer overflows are and why they're both so common and so dangerous. It then discusses the new Linux and UNIX methods for broadly countering them -- and why these methods are not enough.
It then shows various ways to counter buffer overflows in C/C++ programs, both statically-sized approaches (such as the standard C library and OpenBSD/strlcpy solution) and dynamically-sized solutions, as well as some tools to help you. Finally, the article closes with some predictions on the future of buffer overflow vulnerabilities.
By David A. Wheeler at IBM developerWorks.
[ Read more ]
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