BFF 2.7 (September 23, 2013)

Virtual Machine changes

• Switch to Ubuntu from Debian

Code changes

• Use of PIN to uniquely identify crashes that trash the stack
• Optional feature to recycle crashing test cases as seed files
• Minimization to string defaults to Metasploit string

BFF 2.6 (October 19, 2012)

Code changes

• Incorporated CERT Triage Tools 1.04 to determine exploitability of crashes found.
• Integrated code improvements from FOE 2.0 release
• BFF 2.6 and FOE 2.0.1 use the same certfuzz package
• Improved fuzzing campaign recovery after VM reboot
• Detect and abort minimization if it takes too long (> 1hr)
• Fixed a bug in minimizer crash recycling
• Various bug fixes and improved error handling

BFF 2.5 (October 26, 2011)

Virtual Machine changes

• Upgraded to python 2.7
• Upgraded to gdb 7.2

Code changes

• BFF now runs on OSX in addition to Linux
• Support for multiple seed files
• Crashes found during minimization get analyzed as well
• Improved machine learning implementation applied to both seed file selection and rangefinder
• Improved crash uniqueness determination on Linux
• Minimizer tuned for performance
• callgrind generated on unique crashers for code coverage analysis
• default gdb output changed to provide additional details
• Basic crash clustering (analysis/callsim.py) using callgrind coverage analysis
• Optional minimization-to-string feature

BFF 2.0 (February 14, 2011)

Virtual Machine changes

• Added python libraries: Numpy, Scipy, Matplotlib

Code changes

• Ported BFF from Perl to Python
• Complete rewrite of crasher minimization using probability-based algorithm
• Added 'rangefinder' capability to automatically discover optimal fuzzing probability range(s)
• Restructured output directory (./crashers), now organized by crash hash
• Added analyzer scripts for visualization & fuzz run analysis

BFF 1.1 (September 21, 2010)

Virtual Machine changes

• Updated to Debian Squeeze for newer libraries.
• Installed generic vesa video driver for increased VM compatibility.
• Fixed strip symlink to /bin/true . 

Code changes

• Forcibly kill gdb
• Removed unused tty information
• Updated to save SIGABRT crashes, discarding those caused by failed. asserts. Failed asserts can be saved through config option.
• Refactored perl script for increased performance and usability. 
• Added crasher minimization script

BFF 1.0 (May 17, 2010)

• Initial Release