Wu-ftpd FTP server contains remotely exploitable off-by-one bug

polytarp at cyberspace.org polytarp at cyberspace.org
Thu Jul 31 16:28:50 PDT 2003


Yes, I read Mike's E-mail.  Did you read mine?  I stated quite clearly,
and I quote:  can make buffer overflows.  Mike and I are in complete
agreement.

On Thu, 31 Jul 2003 fbsd at w88trigger.com wrote:

> Did you read Mike's email!?  Sure, a different compiler and OS 
> can make buffer overflows not work, but that does not mean the 
> buffer overflow does not exist on a different system.  The 
> buffer overflow MAY still exist and MAY still be exploitable 
> using different exploit code (as Mike stated in his email).
> 
> 
> On Thursday 31 July 2003 14:31, polytarp at cyberspace.org wrote:
> > On Thu, 31 Jul 2003 mike at sentex.net wrote:
> > > At 02:40 PM 31/07/2003 -0400, polytarp at cyberspace.org wrote:
> > > >Buffer overflows which work on Linux do not work on
> > > > FreeBSD.
> > >
> > > You need to qualify that statement.  Yes, there are some
> > > that will not be relevant and the exact same exploit code
> > > will not work.  But  "Buffer overflows which work on Linux
> > > do not work on FreeBSD" is dangerously misleading.... In the
> > > case of wu-ftpd there have been several issues in the past
> > > that affected both FreeBSD and Linux.  Same bug, different
> > > exploit code, both vulnerable.  That being said, I havent
> > > had a chance to review this one so I dont know.
> >
> > No, you're wrong. Even a different COMPILER -- let alone a
> > different OPERATING SYSTEM -- can make buffer overflows not
> > work.
> >
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> 
> 



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