Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2009-5010 Details

Description

Race condition in the FTPHandler class in ftpserver.py in pyftpdlib before 0.5.1 allows remote attackers to cause a denial of service (daemon outage) by establishing and then immediately closing a TCP connection, leading to the accept function having an unexpected return value of None, a different vulnerability than CVE-2010-3494.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://bugs.python.org/issue6706	CVE	Patch
http://code.google.com/p/pyftpdlib/issues/detail?id=91	CVE
http://code.google.com/p/pyftpdlib/source/browse/trunk/HISTORY	CVE
http://code.google.com/p/pyftpdlib/source/detail?r=439	CVE
http://code.google.com/p/pyftpdlib/source/diff?spec=svn439&r=439&format=side&path=/trunk/pyftpdlib/ftpserver.py	CVE
https://bugs.launchpad.net/zodb/+bug/135108	CVE
http://www.openwall.com/lists/oss-security/2010/09/09/6	CVE
http://www.openwall.com/lists/oss-security/2010/09/11/2	CVE
http://www.openwall.com/lists/oss-security/2010/09/22/3	CVE
http://www.openwall.com/lists/oss-security/2010/09/24/3	CVE
http://bugs.python.org/issue6706	[email protected]	Patch
http://code.google.com/p/pyftpdlib/issues/detail?id=91	[email protected]
http://code.google.com/p/pyftpdlib/source/browse/trunk/HISTORY	[email protected]
http://code.google.com/p/pyftpdlib/source/detail?r=439	[email protected]
http://code.google.com/p/pyftpdlib/source/diff?spec=svn439&r=439&format=side&path=/trunk/pyftpdlib/ftpserver.py	[email protected]
https://bugs.launchpad.net/zodb/+bug/135108	[email protected]
http://www.openwall.com/lists/oss-security/2010/09/09/6	[email protected]
http://www.openwall.com/lists/oss-security/2010/09/11/2	[email protected]
http://www.openwall.com/lists/oss-security/2010/09/22/3	[email protected]
http://www.openwall.com/lists/oss-security/2010/09/24/3	[email protected]

see all 20 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-362	Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')	[email protected]

Affected Products

Product	Versions
g.rodola pyftpdlib	<= 0.5.0 0.1 0.1.1 0.2.0 0.3.0
CPE cpe:2.3:a:g.rodola:pyftpdlib:::::::: cpe:2.3:a:g.rodola:pyftpdlib:0.1:::::::* cpe:2.3:a:g.rodola:pyftpdlib:0.1.1:::::::* cpe:2.3:a:g.rodola:pyftpdlib:0.2.0:::::::* cpe:2.3:a:g.rodola:pyftpdlib:0.3.0:::::::* cpe:2.3:a:g.rodola:pyftpdlib:0.4.0:::::::* Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 16, 2026	CVE Modified	[email protected]
Apr 29, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Oct 20, 2010	Initial Analysis	[email protected]