PT-2010-1812 · Pyftpdlib · Pyftpdlib

Paolo Losi · Published 2010-10-19 · Updated 2022-05-02 · CVE-2009-5010

Positive Technologies (AI Summary)

CVSS v4.0

6.3

Medium

Base vector

AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions pyftpdlib versions prior to 0.5.1

Description A race condition exists in the FTPHandler class in ftpserver.py, allowing remote attackers to cause a denial of service by establishing and then immediately closing a TCP connection. This leads to the accept function having an unexpected return value of None.

Recommendations For versions prior to 0.5.1, update to version 0.5.1 or later to resolve the issue.

Fix

Race Condition

Weakness Enumeration

CWE-362

Related Identifiers

CVE-2009-5010

GHSA-MPG6-RGP4-35RR

PYSEC-2010-7

Affected Products

Pyftpdlib

References · 16

• http://bugs.python.org/issue6706 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2009-5010 · Security Note
• https://osv.dev/vulnerability/GHSA-mpg6-rgp4-35rr · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2010-7 · Vendor Advisory
• https://github.com/giampaolo/pyftpdlib · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/pyftpdlib/PYSEC-2010-7.yaml · Note
• http://openwall.com/lists/oss-security/2010/09/24/3 · Note
• https://bugs.launchpad.net/zodb/+bug/135108 · Note
• http://code.google.com/p/pyftpdlib/issues/detail?id=91 · Note
• http://code.google.com/p/pyftpdlib/source/detail?r=439 · Note
• https://github.com/advisories/GHSA-mpg6-rgp4-35rr · Note
• http://openwall.com/lists/oss-security/2010/09/22/3 · Note
• http://code.google.com/p/pyftpdlib/source/diff?spec=svn439&r=439&format=side&path=/trunk/pyftpdlib/ftpserver.py · Note
• http://code.google.com/p/pyftpdlib/source/browse/trunk/HISTORY · Note
• http://openwall.com/lists/oss-security/2010/09/11/2 · Note