title: Example of a backdoor submitted to an open source project?
body: <p>To clarify immediately, I'm not interested in writing a backdoor.  I have no interest in submitting backdoor changelists to projects myself.</p>
  
  <p>I'm researching some source modeling techniques, and we're interested in seeing if exploits or malicious code can be identified.  We're using git and subversion histories to examine how a model snapshot captures relationships between the code.  There is a question about whether certain types of code appear as outliers in an environment like this.</p>
  
  <p>With that in mind, I'm having a hard time finding instances of a git/cvs/? open source repository with an example of a changelist that contained a backdoor, and was submitted and will show up in the logs.</p>
  
  <p>We were looking at <a href="http://forums.proftpd.org/smf/index.php?topic=5206.0" rel="nofollow">proftpd as an early example</a>, but this exploit wasn't checked in but rather modified other versions of the code.</p>
  
  <p>Are there examples in the revision history of an open source project of attempts to insert backdoor code?</p>
  
  <p>Thanks,
  Scott</p>