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Vulnerability Details : CVE-2010-3494

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 accept function having an unexpected value of None for the address, or an ECONNABORTED, EAGAIN, or EWOULDBLOCK error, a related issue to CVE-2010-3492.
Publish Date : 2010-10-19 Last Update Date : 2010-10-20
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- CVSS Scores & Vulnerability Types

CVSS Score
4.3
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 362

- Products Affected By CVE-2010-3494

# Product Type Vendor Product Version Update Edition Language
1 Application G.rodola Pyftpdlib 0.1 Version Details Vulnerabilities
2 Application G.rodola Pyftpdlib 0.1.1 Version Details Vulnerabilities
3 Application G.rodola Pyftpdlib 0.2.0 Version Details Vulnerabilities
4 Application G.rodola Pyftpdlib 0.3.0 Version Details Vulnerabilities
5 Application G.rodola Pyftpdlib 0.4.0 Version Details Vulnerabilities
6 Application G.rodola Pyftpdlib 0.5.0 Version Details Vulnerabilities
7 Application G.rodola Pyftpdlib 0.5.1 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
G.rodola Pyftpdlib 7

- References For CVE-2010-3494

http://code.google.com/p/pyftpdlib/issues/detail?id=104 CONFIRM
http://code.google.com/p/pyftpdlib/source/detail?r=556 CONFIRM
http://code.google.com/p/pyftpdlib/source/browse/trunk/HISTORY CONFIRM
http://code.google.com/p/pyftpdlib/issues/detail?id=105 CONFIRM
http://www.openwall.com/lists/oss-security/2010/09/09/6
MLIST [oss-security] 20100909 CVE Request -- Python -- accept() implementation in async core is broken => more subcases
http://code.google.com/p/pyftpdlib/source/diff?spec=svn556&r=556&format=side&path=/trunk/pyftpdlib/ftpserver.py CONFIRM
http://www.openwall.com/lists/oss-security/2010/09/11/2
MLIST [oss-security] 20100910 Re: CVE Request -- Python -- accept() implementation in async core is broken => more subcases
http://www.openwall.com/lists/oss-security/2010/09/24/3
MLIST [oss-security] 20100924 Re: CVE Request -- Python -- accept() implementation in async core is broken => more subcases
http://www.openwall.com/lists/oss-security/2010/09/22/3
MLIST [oss-security] 20100922 Re: CVE Request -- Python -- accept() implementation in async core is broken => more subcases
http://bugs.python.org/issue6706
https://bugs.launchpad.net/zodb/+bug/135108

- Metasploit Modules Related To CVE-2010-3494

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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