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What is LibFuzzer?

LibFuzzer is an in-process engine that employs coverage-guided techniques for evolutionary fuzzing. By integrating directly with the library being tested, it injects generated fuzzed inputs into a specific entry point or target function, allowing it to track executed code paths while modifying the input data to improve code coverage. The coverage information is gathered through LLVM’s SanitizerCoverage instrumentation, which provides users with comprehensive insights into the testing process. Importantly, LibFuzzer is continuously maintained, with critical bugs being resolved as they are identified. To use LibFuzzer with a particular library, the first step is to develop a fuzz target; this function takes a byte array and interacts meaningfully with the API under scrutiny. Notably, this fuzz target functions independently of LibFuzzer, making it compatible with other fuzzing tools like AFL or Radamsa, which adds flexibility to testing approaches. Moreover, combining various fuzzing engines can yield more thorough testing results and deeper understanding of the library's security flaws, ultimately enhancing the overall quality of the code. The ongoing evolution of fuzzing techniques ensures that developers are better equipped to identify and address potential vulnerabilities effectively.

What is Boofuzz?

Boofuzz acts as both an evolution and an improvement over the long-standing Sulley fuzzing framework. Not only does it tackle various bugs, but it also emphasizes extensibility in its design. It maintains all critical elements of a fuzzer, including effective data generation, comprehensive instrumentation for monitoring, failure detection mechanisms, the capability to reset targets after a failure, and detailed documentation of test outcomes. The installation process is notably streamlined, offering compatibility with numerous communication methods. It includes native support for serial fuzzing, Ethernet protocols, IP-layer communications, and UDP broadcasting. Furthermore, Boofuzz enhances data recording practices, ensuring that the information is consistent, thorough, and user-friendly. Users can conveniently export their test results in CSV format and take advantage of customizable options for instrumentation and failure detection. As a Python library, Boofuzz allows for the straightforward creation of fuzzer scripts, and it is highly recommended to set it up within a virtual environment to optimize its functionality and organization. This versatility makes it an ideal choice for both experienced testers and those just beginning their journey in fuzz testing. With its robust features and user-friendly approach, Boofuzz stands out as a valuable asset in the realm of software testing.

Media

Media

Integrations Supported

Atheris
C
C++
ClusterFuzz
Fuzzbuzz
Google ClusterFuzz
Google Sheets
Jazzer
Microsoft Excel
Python

Integrations Supported

Atheris
C
C++
ClusterFuzz
Fuzzbuzz
Google ClusterFuzz
Google Sheets
Jazzer
Microsoft Excel
Python

API Availability

Has API

API Availability

Has API

Pricing Information

Free
Free Trial Offered?
Free Version

Pricing Information

Free
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

LLVM Project

Date Founded

2003

Company Website

llvm.org/docs/LibFuzzer.html

Company Facts

Organization Name

Boofuzz

Company Website

boofuzz.readthedocs.io/en/stable/

Categories and Features

Categories and Features

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