Grammatech, Inc.

Other

Drew Christian Dehaas

David Gordon Melski

Nathan Taylor Kennedy

Anton Beerens

Jonathan Farmer

Aad Van Wensen

Alan Foose

Certain example embodiments described herein relate to techniques for automatically protecting, or hardening, software against exploits of memory-corruption vulnerabilities. The techniques include arranging a plurality of guard regions in the memory in relation to data objects formed by the application program, identifying an access by the application program to a guard region arranged in the memory as a disallowed access, and modifying the execution of the application program in response to the identifying, the modifying being in order to prevent exploitation of the memory and/or to correctly execute the application program.

Systems and/or methods for automatically protecting against memory corruption vulnerabilities

A method of ensuring a correct program sequence in a dual-Processor module that includes Processor A and Processor B. Processor A and Processor B are both coupled to a common memory. Processor A and Processor B each execute a first safety program and each generate an instruction stream therefrom. At one or more points in time while running the first safety program, Processor A reads its program counter value from a current instruction being executed and generates therefrom a current Processor A CRC value, and Processor B reading its program counter value from the same current instruction being executed generates therefrom a current Processor B CRC value. Processor A transfers its current CRC value to Processor B and/or Processor B transfers its current CRC value to Processor A, and these CRC values are compared. A safety action is triggered if the comparing determines non-matching current CRC values.

Ensuring a correct program sequence in a dual-processor architecture

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Ithaca, NY, United States of America

Drew Christian Dehaas