Open Source C Source Code Analysis Tools

ansvif, or A Not So Very Intelligent Fuzzer, suited to find bugs in code by throwing garbage arguments, files, and environment variables at the target program, that you may or may not have the source code to. It supports many features, such as buffer size, randomization of the buffer size, random data injection, templates, and much more. The purpose of this project is to identify bugs in software, specifically bugs that can induce a segmentation fault under various conditions. This aids security researchers in writing buffer overflows, input validation vulnerabilities, as well as helping one audit code for general logic mistakes.

DEEEP is a open source static analysis tool to detect, in C programs, integer vulnerabilities caused by the bad adaption of aplications from ILP32 to LP64. It uses the tools Lint and Splint, and runs over Open Solaris and Linux operating systems. This tool semantically analyses source code. More precisely, it does type checking, data-flow analysis, and it automatically correlates the results of these two types of analysis. Type checking is used for finding bugs on the way integers are handled, and data-flow analysis is used to see if hazardous functions (eg. memcpy, strcpy) are accessible from outside the program. After this two analyses, the tool correlates the results from the previous phases to attain if the data that comes from the inputs are affected by vulnerabilities from porting to LP64, and if these are handled by dangerous functions (memcpy, strcpy,...). In resume, identify if the found bugs

REL (Research and Education Language) is a simple but very powerfull language with a compiler, an interpreter and a verifier.