Best Fuzz Testing Tools for Rust

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OSS-Fuzz provides continuous fuzzing to open source software. Fuzz testing is an established technique for detecting programming errors in software. Many of these detectable mistakes, such as buffer overflow, have serious security implications. Google has discovered thousands of security flaws and stability bugs through guided in-process fuzzing of Chrome components. We now want to share this service with the open-source community. OSS-Fuzz aims at making open source software more stable and secure by combining modern fuzzing with scalable, distributive execution. ClusterFuzzLite or ClusterFuzz is available for projects that do not qualify to use OSS-Fuzz. OSS-Fuzz currently supports C/C++ code, Rust code, Go code, Python code, and Java/JVM. Other languages supported by LLVM could also work. OSS-Fuzz can fuzz both x86_64 builds and i386 versions.

American fuzzy lop, a security-oriented fuzzer, uses a novel form of compile-time tooling and genetic algorithms to discover clean test cases that trigger internal states within the binary. This improves the functional coverage of the fuzzed codes. The compact corpora generated by the tool can also be used to seed other, more resource-intensive or labor-intensive testing regimes in the future. Afl-fuzz, in comparison to other instrumented fuzzers, is designed to be practical. It has a modest overhead, uses highly effective fuzzing techniques and effort minimization tricks. It requires little configuration and handles complex real-world use-cases, such as common image parsing and file compression libraries. It's an instrumentation-guided genetic fuzzer capable of synthesizing complex file semantics in a wide range of non-trivial targets.

The Fuzzbuzz testing workflow is very similar with other CI/CD test workflows. Fuzz testing is different from other testing workflows in that it requires multiple jobs to be run simultaneously. This results in some extra steps. Fuzzbuzz provides a fuzz-testing platform. We make it easy for developers to add fuzz testing to their code, and run them within CI/CD. This helps them find critical bugs and vulnerabilities prior to production. Fuzzbuzz integrates seamlessly into your environment. It follows you from the terminal through to CI/CD. Use your own terminal, IDE, or build tool to write a fuzztest in your environment. Fuzzbuzz will run your fuzz tests automatically against your latest code changes when you push to CI/CD. You can be notified via Slack, GitHub or email when bugs are discovered. Regressions are caught as new changes and previous runs are automatically compared. Fuzzbuzz builds and instruments code as soon as changes are detected.

Thousands of tests are generated automatically every minute in order to identify vulnerabilities and guide rapid remediation. Mayhem automates the generation of test suites to produce actionable results. Mayhem uses dockerized images, so there is no need to recompile code. Self-learning ML continuously runs thousands of tests every second, probing for defects and crashes. Developers can then focus on features. Continuous testing is run in the background, highlighting new defects and increasing code coverage. Mayhem provides a copy/paste replication and backtrace of every defect. It then prioritizes these based on the risk. All results are duplicated, and sorted by urgency. Mayhem integrates with your existing build pipelines and development tools to provide developers with actionable results. No matter what tools or language your team uses.