---
id: 1981
title: "Fuzzing an API with DeepState (Part 2)"
source_domain: blog.trailofbits.com
source_url: "https://blog.trailofbits.com/2019/01/23/fuzzing-an-api-with-deepstate-part-2/"
published_at: "2019-01-23T12:50:06Z"
tags: ["fuzzing", "mutation-testing", "symbolic-execution", "deepstate", "universalmutator"]
phying_url: "https://phying.com/item/1981"
lang: en
---

# Fuzzing an API with DeepState (Part 2)

## Summary

Using the universalmutator tool, this sequel measures how well DeepState fuzzers kill auto-generated red-black tree mutants, comparing results across fuzzing and symbolic execution backends.

## Intelligence Metadata

- **Sources:** blog.trailofbits.com
- **Published:** 2019-01-23T12:50:06Z
- **Original:** https://blog.trailofbits.com/2019/01/23/fuzzing-an-api-with-deepstate-part-2/
- **Phying News:** https://phying.com/item/1981