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Sound Abstract Nonexploitability Analysis

Talkat VMCAI 2024 · 2024-01-15..01-16· [security]
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Defines a precise nonexploitability hyperproperty and gives a sound abstract-interpretation analysis that treats user input and randomness separately, proving nonexploitable iff the failure indicator is not tainted. Implements a 10k‑line OCaml analyzer for a C subset and runs it on 77 GNU Coreutils programs (up to 4,188 LOC) plus Juliet tests, filtering out 3498 of 4715 alarms as nonexploitable while adding under 16% runtime overhead.

AI-written summary · about

  1. 0:00Introduction
  2. 1:48False positives in abstract interpretation
  3. 3:11Runtime errors and security
  4. 5:45Nonexploitability as hyperproperty
  5. 8:16Taint analysis for nonexploitability
  6. 10:23Combining domains with taint tracking
  7. 12:29Experimental evaluation
  8. 14:40Conclusion and future work
  9. 15:00Q&A
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