How It Works
Typically, buffer overflow protection modifies the organization of data in the stack frame of a function call to include a "canary" value which, when destroyed, shows that a buffer preceding it in memory has been overflowed. This gives the benefit of preventing an entire class of attacks. According to some software vendors, the performance impact of these techniques is negligible.
Read more about this topic: Buffer Overflow Protection
Famous quotes containing the word works:
“They that go down to the sea in ships, that do business in great waters, these see the works of the Lord and his wonders in the deep.”
—Bible: Hebrew Psalms 107:23-24.