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Preventing stack buffer overflow attacks

  • US 20030217277A1
  • Filed: 05/15/2002
  • Published: 11/20/2003
  • Est. Priority Date: 05/15/2002
  • Status: Active Grant
First Claim
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1. A method for preventing stack buffer overflow in a computer system, comprising steps of:

  • (a) prior to their execution, scanning opcodes for a trigger opcode;

    (b) for each trigger opcode found, encrypting an operand associated with the trigger opcode;

    (c) at execution of the trigger opcode, using the operand'"'"'s corresponding encrypted value instead of the operand'"'"'s actual value.

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