Mitigation of stack corruption exploits

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United States of America Patent

PATENT NO 9870469
SERIAL NO

14497789

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Abstract

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In an example, a stack protection engine is disclosed for preventing or ameliorating stack corruption attacks. The stack protection engine may operate transparently to user-space processes. After a call to a subroutine from a parent routine, the stack protection engine encodes the return address on the stack, such as with an exclusive or cipher and a key selected from a key array. After the subroutine returns control to the main routine, the stack protection engine decodes the address, and returns control. If a stack corruption attack occurs, the malicious return address is not properly encoded, so that when decoding occurs, the program may simply crash rather than returning control to the malicious code.

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Patent Owner(s)

  • MCAFEE, LLC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Crowe, Simon Milton Keynes, GB 3 100

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