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Test ID:1.3.6.1.4.1.25623.1.0.801614
Category:FTP
Title:pyftpdlib FTP Server Denial of Service Vulnerability
Summary:Check for the version of pyftpdlib
Description:
Overview: This host is running pyftpdlib FTP server and is prone to Denial of
Service vulnerability.

Vulnerability Insight:
The flaw is due to race condition in the FTPHandler class, which allows
remote attackers to cause a denial of service by establishing and then
immediately closing a TCP connection, leading to the accept function having
an unexpected return value of None.

Impact:
Successful exploitation will allow attacker to cause a denial of service.

Impact Level: Application

Affected Software/OS:
ftpserver.py in pyftpdlib before 0.5.1

Fix: Upgrade to pyftpdlib version 0.5.2 or later,
For updates refer to http://code.google.com/p/pyftpdlib/downloads/list

References:
http://code.google.com/p/pyftpdlib/issues/detail?id=91
http://code.google.com/p/pyftpdlib/source/detail?r=439
http://code.google.com/p/pyftpdlib/source/browse/trunk/HISTORY
Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2009-5010
http://www.openwall.com/lists/oss-security/2010/09/09/6
http://www.openwall.com/lists/oss-security/2010/09/11/2
http://www.openwall.com/lists/oss-security/2010/09/22/3
http://www.openwall.com/lists/oss-security/2010/09/24/3
http://bugs.python.org/issue6706
https://bugs.launchpad.net/zodb/+bug/135108
CopyrightCopyright (C) 2010 Greenbone Networks GmbH

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