ruzzy

To find memory corruption in Ruby C extensions, you use coverage-guided fuzzing integrated with AddressSanitizer to identify vulnerabilities and undefined behavior during execution. Ruzzy supports fuzzing both pure Ruby code and native C extensions.

Coverage-guided fuzzing for Ruby applications analyzes execution paths to identify previously unknown memory corruption and undefined behavior. This technique systematically tests code paths to uncover hidden vulnerabilities in Ruby applications and C extensions.

Yes, you need clang and libfuzzer to fuzz Ruby code with Ruzzy, as these dependencies provide the underlying compilation and coverage-guided fuzzing engine required to detect memory safety issues.

Yes, you can use AddressSanitizer to test Ruby gems with native extensions. Ruzzy integrates sanitizer tools to provide detailed error reporting for memory corruption and undefined behavior found in C extensions.

The best way to detect undefined behavior in Ruby applications is using a fuzzer with UndefinedBehaviorSanitizer integration. Ruzzy provides coverage-guided fuzzing that systematically uncovers memory safety issues in both Ruby and C extensions.

Your Ruby fuzzer may not report memory safety issues if it lacks sanitizer integration. Combining coverage-guided fuzzing with AddressSanitizer and UndefinedBehaviorSanitizer, as Ruzzy does, provides detailed error reporting for memory corruption.