giampaolo/pyftpdlib · Security
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in pyftpdlib
- GHSA ID
- GHSA-62xg-239j-vxg7
- CVE ID
- CVE-2009-5011
- Severity
- medium
- Published
- Updated
- CVSS v4
- 6.3 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
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.
CWEs
- CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
References
- https://nvd.nist.gov/vuln/detail/CVE-2009-5011 ↗
- http://code.google.com/p/pyftpdlib/issues/detail?id=100 ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/pyftpdlib/PYSEC-2010-8.yaml ↗
- http://code.google.com/p/pyftpdlib/source/browse/trunk/HISTORY ↗
- http://code.google.com/p/pyftpdlib/source/detail?r=543 ↗
- http://code.google.com/p/pyftpdlib/source/diff?spec=svn543&r=543&format=side&path=/trunk/pyftpdlib/ftpserver.py ↗
- https://github.com/advisories/GHSA-62xg-239j-vxg7 ↗