High

pyftpdlib vulnerable to allocation of resources without limits

  • Disclosed: 19.10.2010
  • Updated: 11.10.2026 11:20

The ftp_STOU function in FTPServer.py in pyftpdlib before 0.2.0 does not limit the number of attempts to discover a unique filename, which might allow remote authenticated users to cause a denial of service via a STOU command.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Python (PyPI) pyftpdlib < 0.2.0 0.2.0

References

CVSS score 6.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-770
Platform
Python (PyPI)
Package
pyftpdlib
Disclosed
19.10.2010
Updated
11.10.2026 11:20

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2010-24 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-cx59-cp6c-9fr8 - 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.

All (14) in the archive
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

  1. 2017: 0
  2. 2018: 0
  3. 2019: 0
  4. 2020: 0
  5. 2021: 0
  6. 2022: 0
  7. 2023: 0
  8. 2024: 0
  9. 2025: 0
  10. 2026: 0

earlier: 14

Severity:
  1. High CVE-2009-5012 < 0.5.2 0.5.2
  2. pyftpdlib vulnerable to allocation of resources without limits this entry
    High · 6.5 CVE-2007-6740 < 0.2.0 0.2.0
  3. High · 7.5 CVE-2007-6739 < 0.2.0 0.2.0

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