Memory leak in the on_dtp_close function in ftpserver.py in pyftpdlib before 0.5.2 allows remote authenticated users to cause a denial of service (memory consumption) by sending a QUIT command during a data transfer.Referenceshttp://code.google.com/p/pyftpdlib/source/diff?spec=svn615&r=615&format=side&path=/trunk/pyftpdlib/ftpserver.pyhttp://code.google.com/p/pyftpdlib/source/browse/trunk/HISTORYhttp://code.google.com/p/pyftpdlib/issues/detail?id=119http://code.google.com/p/pyftpdlib/source/detail?r=615
