boofuzz vs Jazzer

boofuzz is a network protocol fuzzing framework and a successor to Sulley. It installs as a Python library for building fuzzer scripts, using `pip install boofuzz`, and requires Python 3.9 or later. Its workflow generates data, detects failures, resets targets after failures, and records test data. It supports varied communications, including serial, Ethernet and IP-layer traffic, UDP broadcast, TCP, UDP, SSL, and raw sockets. Run logs are saved in a SQLite database in the boofuzz-results directory, saved runs can be reopened in a web interface with `boo open`, and results can be exported as CSV. A process monitor can detect crashes and restart applications on Windows or Linux, but must run on the target machine. The optional network monitor requires Pcapy and Impacket, which are not installed automatically. Public FTP and HTTP protocol libraries are documented, though their implementations do not provide full protocol coverage. The project describes extensibility for instrumentation and failure detection. It uses the GPL-2.0 license; usage questions are directed to Stack Overflow, while bugs and suggestions can go to GitHub issues or pull requests.

Jazzer is a free, coverage-guided fuzzer for JVM applications, running in-process and based on libFuzzer. It supports Java, Kotlin, Scala, and Clojure targets, as well as JNI and native libraries. With JUnit 5.9.0 or newer, fuzz tests can run alongside regular unit tests. The @FuzzTest annotation lets Jazzer generate and mutate method inputs, including primitives, strings, arrays, and standard library classes. JUnit fuzz tests can use saved crashing inputs in regression mode or generate and mutate inputs to explore coverage. Built-in sanitizers detect Java security issues such as SSRF, file path traversal, and OS command injection, and provide feedback to guide fuzzing. The README documents use with Maven, Gradle, and Bazel. Jazzer can also run as a standalone binary or through its Java main class. Supported systems are Linux x86_64 and arm64, macOS 12 or newer on x86_64 and arm64, and Windows x86_64. The jazzer-junit package is available on Maven Central, and the repository identifies the project as licensed under Apache-2.0.