CVE-2009-5011 - Race condition in the FTPHandler class in ftpserver.py in pyftpdlib before 0.5.2 allows remote attackers to cause a denial of service (daemon outage) by establishing and then immediately closing a TCP connection, leading to the getpeername function having an ENOTCONN error, a different vulnerability than CVE-2010-3494

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MEDIUM

Race condition in the FTPHandler class in ftpserver.py in pyftpdlib before 0.5.2 allows remote attackers to cause a denial of service (daemon outage) by establishing and then immediately closing a TCP connection, leading to the getpeername function having an ENOTCONN error, a different vulnerability than CVE-2010-3494

Published Oct 19, 2010

6.3

MEDIUM

CVSS 4.0

EPSS 0.92%

Description

Race condition in the FTPHandler class in ftpserver.py in pyftpdlib before 0.5.2 allows remote attackers to cause a denial of service (daemon outage) by establishing and then immediately closing a TCP connection, leading to the getpeername function having an ENOTCONN error, a different vulnerability than CVE-2010-3494.

Affected products

Remediation

No remediation recorded yet.

Weaknesses (1)

CWE-362

Race Condition

References (8)

http://code.google.com/p/pyftpdlib/issues/detail?id=100
x_refsource_CONFIRM
http://code.google.com/p/pyftpdlib/source/browse/trunk/HISTORY
x_refsource_CONFIRM
http://code.google.com/p/pyftpdlib/source/detail?r=543
x_refsource_CONFIRM
http://code.google.com/p/pyftpdlib/source/diff?spec=svn543&r=543&format=side&path=/trunk/pyftpdlib/ftpserver.py
x_refsource_CONFIRM
https://euvd.enisa.europa.eu/vulnerability/EUVD-2010-0026
Advisory
https://github.com/advisories/GHSA-62xg-239j-vxg7
Advisory
https://github.com/pypa/advisory-database/tree/main/vulns/pyftpdlib/PYSEC-2010-8.yaml
https://nvd.nist.gov/vuln/detail/CVE-2009-5011

Link	Providers	Tags
http://code.google.com/p/pyftpdlib/issues/detail?id=100		x_refsource_CONFIRM
http://code.google.com/p/pyftpdlib/source/browse/trunk/HISTORY		x_refsource_CONFIRM
http://code.google.com/p/pyftpdlib/source/detail?r=543		x_refsource_CONFIRM
http://code.google.com/p/pyftpdlib/source/diff?spec=svn543&r=543&format=side&path=/trunk/pyftpdlib/ftpserver.py		x_refsource_CONFIRM
https://euvd.enisa.europa.eu/vulnerability/EUVD-2010-0026		Advisory
https://github.com/advisories/GHSA-62xg-239j-vxg7		Advisory
https://github.com/pypa/advisory-database/tree/main/vulns/pyftpdlib/PYSEC-2010-8.yaml
https://nvd.nist.gov/vuln/detail/CVE-2009-5011