Moderate severityNVD Advisory· Published Oct 19, 2010· Updated Apr 29, 2026
CVE-2009-5010
CVE-2009-5010
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.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
pyftpdlibPyPI | < 0.5.1 | 0.5.1 |
Affected products
6cpe:2.3:a:g.rodola:pyftpdlib:*:*:*:*:*:*:*:*+ 5 more
- cpe:2.3:a:g.rodola:pyftpdlib:*:*:*:*:*:*:*:*range: <=0.5.0
- 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:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
13- bugs.python.org/issue6706nvdPatchWEB
- github.com/advisories/GHSA-mpg6-rgp4-35rrghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2009-5010ghsaADVISORY
- code.google.com/p/pyftpdlib/issues/detailnvdWEB
- code.google.com/p/pyftpdlib/source/browse/trunk/HISTORYnvdWEB
- code.google.com/p/pyftpdlib/source/detailnvdWEB
- code.google.com/p/pyftpdlib/source/diffnvdWEB
- www.openwall.com/lists/oss-security/2010/09/09/6nvdWEB
- www.openwall.com/lists/oss-security/2010/09/11/2nvdWEB
- www.openwall.com/lists/oss-security/2010/09/22/3nvdWEB
- www.openwall.com/lists/oss-security/2010/09/24/3nvdWEB
- bugs.launchpad.net/zodb/+bug/135108nvdWEB
- github.com/pypa/advisory-database/tree/main/vulns/pyftpdlib/PYSEC-2010-7.yamlghsaWEB
News mentions
0No linked articles in our index yet.