id: PYSEC-2010-11
details: 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.
affected:
- package:
    name: pyftpdlib
    ecosystem: PyPI
    purl: pkg:pypi/pyftpdlib
  ranges:
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - fixed: 0.5.2
  versions:
  - 0.2.0
  - 0.3.0
  - 0.4.0
  - 0.5.0
  - 0.5.1
references:
- type: WEB
  url: http://code.google.com/p/pyftpdlib/source/diff?spec=svn556&r=556&format=side&path=/trunk/pyftpdlib/ftpserver.py
- type: WEB
  url: http://code.google.com/p/pyftpdlib/issues/detail?id=105
- type: WEB
  url: http://code.google.com/p/pyftpdlib/source/detail?r=556
- type: WEB
  url: http://www.openwall.com/lists/oss-security/2010/09/24/3
- type: WEB
  url: https://bugs.launchpad.net/zodb/+bug/135108
- type: WEB
  url: http://bugs.python.org/issue6706
- type: WEB
  url: http://www.openwall.com/lists/oss-security/2010/09/22/3
- type: WEB
  url: http://www.openwall.com/lists/oss-security/2010/09/11/2
- type: WEB
  url: http://www.openwall.com/lists/oss-security/2010/09/09/6
- type: WEB
  url: http://code.google.com/p/pyftpdlib/source/browse/trunk/HISTORY
- type: WEB
  url: http://code.google.com/p/pyftpdlib/issues/detail?id=104
- type: ADVISORY
  url: https://github.com/advisories/GHSA-hw4g-fhcp-x5mq
aliases:
- CVE-2010-3494
- GHSA-hw4g-fhcp-x5mq
modified: "2021-07-05T00:01:24.878652Z"
published: "2010-10-19T20:00:00Z"