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layout: default
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title: OSS-Fuzz
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---
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# OSS-Fuzz
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[Fuzz testing](https://en.wikipedia.org/wiki/Fuzz_testing) is a well-known
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technique for uncovering programming errors in software.
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Many of these detectable errors, like [buffer overflow](https://en.wikipedia.org/wiki/Buffer_overflow),
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can have serious security implications. Google has found [thousands] of security vulnerabilities and
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stability bugs by deploying
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[guided in-process fuzzing of Chrome components](https://security.googleblog.com/2016/08/guided-in-process-fuzzing-of-chrome.html),
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and we now want to share that service with the open source community.
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2019-08-09 19:35:14 +00:00
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[thousands]: https://bugs.chromium.org/p/chromium/issues/list?q=label%3AStability-LibFuzzer%2CStability-AFL%20-status%3ADuplicate%2CWontFix&can=1
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In cooperation with the [Core Infrastructure Initiative](https://www.coreinfrastructure.org/),
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OSS-Fuzz aims to make common open source software more secure and stable by
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combining modern fuzzing techniques with scalable,
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distributed execution.
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We support the [libFuzzer](http://llvm.org/docs/LibFuzzer.html) and [AFL](http://lcamtuf.coredump.cx/afl/) fuzzing engines
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in combination with [Sanitizers](https://github.com/google/sanitizers), as well as
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[ClusterFuzz](https://github.com/google/clusterfuzz),
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a distributed fuzzer execution environment and reporting tool.
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Currently, OSS-Fuzz supports C and C++ code, though other languages supported by [LLVM](http://llvm.org) may work too.
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## Trophies
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As of August 2019, OSS-Fuzz has found over [14,000] bugs in over [200] open source
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projects.
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[14,000]: https://bugs.chromium.org/p/oss-fuzz/issues/list?can=1&q=-status%3AWontFix%2CDuplicate+-Infra
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[200]: https://github.com/google/oss-fuzz/tree/master/projects
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