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Secure programmer: Keep an eye on inputs
By David A. Wheeler - 2004-01-26 Page:  1 2 3 4

Conclusions & Resources

Secure programs must check every untrusted input channel, and doing so can eliminate a lot of problems. But that's not enough. Sometimes, even just reading data can be a security vulnerability -- before the data is even checked! And processing the data can cause the program to fail in horrific ways. We're talking about the #1 security vulnerability today -- the buffer overflow. My next installment will discuss what this vulnerability is, how to counter it, and why there's hope that this will become less of a problem in the future.



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First published by IBM developerWorks


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