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

[polytarp at cyberspace.org]

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.