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StackShield

StackShield works as an assembler processor supported by the GNU C and C++ compilers. It works by modifying the function prolog to store away the return pointer into a stack distant enough that overflow is not likely. Upon function return, the function epilog actually returns from the location specified in the private return stack instead of the program stack [18]. The only exploit detection StackShield performs is checking the segments function pointers point to.



2001-05-12