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What is syzkaller?

Syzkaller is an unsupervised, coverage-guided fuzzer designed to uncover vulnerabilities in kernel environments, and it supports multiple operating systems including FreeBSD, Fuchsia, gVisor, Linux, NetBSD, OpenBSD, and Windows. Initially created to focus on fuzzing the Linux kernel, its functionality has broadened to support a wider array of operating systems over time. When a kernel crash occurs in one of the virtual machines, syzkaller quickly begins the process of reproducing that crash. By default, it utilizes four virtual machines to carry out this reproduction and then strives to minimize the program that triggered the crash. During this reproduction phase, fuzzing activities may be temporarily suspended, as all virtual machines could be consumed with reproducing the detected issues. The time required to reproduce a single crash can fluctuate greatly, ranging from just a few minutes to possibly an hour, based on the intricacy and reproducibility of the crash scenario. This capability to minimize and evaluate crashes significantly boosts the overall efficiency of the fuzzing process, leading to improved detection of kernel vulnerabilities. Furthermore, the insights gained from this analysis contribute to refining the fuzzing strategies employed by syzkaller in future iterations.

What is Solidity Fuzzing Boilerplate?

The Solidity Fuzzing Boilerplate acts as a crucial starting point, aimed at streamlining the fuzzing procedure for diverse aspects of Solidity projects, especially libraries. Developers can write their tests once and seamlessly run them with the fuzzing tools provided by both Echidna and Foundry. When different Solidity versions are needed for certain components, these can be easily deployed within a Ganache instance using Etheno. For generating complex fuzzing inputs or performing differential fuzzing by comparing results with non-EVM executables, HEVM's FFI cheat code is a highly effective tool. Furthermore, results from fuzzing experiments can be shared without worrying about licensing implications by adjusting the shell script to pull specific files. If your Solidity contracts will not utilize shell commands, it is wise to disable FFI, as it can slow down processes and should mainly be seen as a workaround. This feature is particularly advantageous when testing intricate implementations that are hard to reproduce in Solidity but can be found in other programming languages. It is crucial to carefully examine the commands executed before initiating tests in projects with FFI enabled, to ensure a thorough understanding of the actions being performed. Maintaining clarity in your testing methodology is vital for upholding the integrity and effectiveness of your fuzzing initiatives, and it ultimately enhances the overall reliability of the project.

Media

Media

Integrations Supported

FreeBSD
Fuchsia Service Maintenance Software
NetBSD
OpenBSD

Integrations Supported

Echidna Finance
Etheno
Foundry
Solidity

API Availability

API Availability

Pricing Information

Free
Free Version

Pricing Information

Free
Free Version

Supported Platforms

Windows
Linux

Supported Platforms

Windows
Mac
Linux

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Google

Company Location

United States

Company Website

github.com/google/syzkaller

Company Facts

Organization Name

patrickd

Company Website

github.com/patrickd-/solidity-fuzzing-boilerplate

Categories and Features

Fuzz Testing

Not specified

Categories and Features

Fuzz Testing

Not specified

SaaS Boilerplates

Not specified

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