Improper input validation in pyftpdlib
The ftp_QUIT function in ftpserver.py in pyftpdlib before 0.5.0 allows remote authenticated users to cause a denial of service (file descriptor exhaustion and daemon outage) by sending a QUIT command during a disallowed data-transfer attempt.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | pyftpdlib | < 0.5.0 | 0.5.0 |
References
- http://code.google.com/p/pyftpdlib/source/diff?spec=svn344&r=344&format=side&path=/trunk/pyftpdlib/ftpserver.py
- http://code.google.com/p/pyftpdlib/issues/detail?id=71
- http://code.google.com/p/pyftpdlib/source/browse/trunk/HISTORY
- http://code.google.com/p/pyftpdlib/source/detail?r=344
- https://github.com/advisories/GHSA-8p2c-fghc-9hj4
- https://nvd.nist.gov/vuln/detail/CVE-2008-7264
- https://github.com/giampaolo/pyftpdlib/issues/71
- https://github.com/giampaolo/pyftpdlib
- https://github.com/pypa/advisory-database/tree/main/vulns/pyftpdlib/PYSEC-2010-6.yaml
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L- Weakness (CWE)
CWE-20- Platform
- Python (PyPI)
- Package
pyftpdlib- Disclosed
- 19.10.2010
- Updated
- 11.10.2026 11:20
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2010-6 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-8p2c-fghc-9hj4 - CC BY 4.0
Vulnerability history: pyftpdlib
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 14
- First → latest
- 10.2010 10.2010
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 5
- Medium 9
Disclosures per year
- 2017: 0
- 2018: 0
- 2019: 0
- 2020: 0
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
earlier: 14
-
Improper input validation in pyftpdlib this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.