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TI-2009-04769 Aliases CVE-2009-5013GHSA-8gv6-x88p-3f6h

Memory leak in the on_dtp_close function in ftpserver.py in pyftpdlib before 0.5.2 allows…

Priority LOW 22CWE-399Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-399 and the CVSS impact.

Summary

Memory leak in the on_dtp_close function in ftpserver.py in pyftpdlib before 0.5.2 allows remote authenticated users to cause a denial of service (memory consumption) by sending a QUIT command during a data transfer.

Why it matters now

EPSS 0.01748 77th percentileScored 2026-11-07
Fix Fixed pyftpdlib (PyPI): 0.5.2

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—pyftpdlib (PyPI)before 0.5.20.5.2Patch availableGHSA-8gv6-x88p-3f6h
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • pyftpdlib (PyPI) Vendor— Affected before 0.5.2 Fixed in 0.5.2 Patch available GHSA-8gv6-x88p-3f6h

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:a:g.rodola:pyftpdlib:*:*:*:*:*:*:*:*up to 0.5.1VulnerableG.rodola
cpe:2.3:a:g.rodola:pyftpdlib:0.1:*:*:*:*:*:*:*0.1VulnerableG.rodola
cpe:2.3:a:g.rodola:pyftpdlib:0.1.1:*:*:*:*:*:*:*0.1.1VulnerableG.rodola
cpe:2.3:a:g.rodola:pyftpdlib:0.2.0:*:*:*:*:*:*:*0.2.0VulnerableG.rodola
cpe:2.3:a:g.rodola:pyftpdlib:0.3.0:*:*:*:*:*:*:*0.3.0VulnerableG.rodola
cpe:2.3:a:g.rodola:pyftpdlib:0.4.0:*:*:*:*:*:*:*0.4.0VulnerableG.rodola
cpe:2.3:a:g.rodola:pyftpdlib:0.5.0:*:*:*:*:*:*:*0.5.0VulnerableG.rodola
  • cpe:2.3:a:g.rodola:pyftpdlib:*:*:*:*:*:*:*:* Versions up to 0.5.1 Vulnerable ·G.rodola
  • cpe:2.3:a:g.rodola:pyftpdlib:0.1:*:*:*:*:*:*:* Versions 0.1 Vulnerable ·G.rodola
  • cpe:2.3:a:g.rodola:pyftpdlib:0.1.1:*:*:*:*:*:*:* Versions 0.1.1 Vulnerable ·G.rodola
  • cpe:2.3:a:g.rodola:pyftpdlib:0.2.0:*:*:*:*:*:*:* Versions 0.2.0 Vulnerable ·G.rodola
  • cpe:2.3:a:g.rodola:pyftpdlib:0.3.0:*:*:*:*:*:*:* Versions 0.3.0 Vulnerable ·G.rodola
  • cpe:2.3:a:g.rodola:pyftpdlib:0.4.0:*:*:*:*:*:*:* Versions 0.4.0 Vulnerable ·G.rodola
  • cpe:2.3:a:g.rodola:pyftpdlib:0.5.0:*:*:*:*:*:*:* Versions 0.5.0 Vulnerable ·G.rodola

Remediation

  • Fix · GHSA-8gv6-x88p-3f6h pyftpdlib (PyPI) Fixed in 0.5.2 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2009-5013
  2. 2026-10-03 Alias added: GHSA-8gv6-x88p-3f6h

References

Advisory 1

Other 6

  • TI-2007-06431 FTPServer.py in pyftpdlib before 0.2.0 does not increment the attempted_logins count for… CVSS 2.0HIGH 7.5
  • TI-2008-06949 ftpserver.py in pyftpdlib before 0.5.0 does not delay its response after receiving an… CVSS 2.0HIGH 7.5
  • TI-2008-06948 Multiple directory traversal vulnerabilities in FTPServer.py in pyftpdlib before 0.3.0… CVSS 2.0MEDIUM 6.5
  • TI-2007-06430 Multiple directory traversal vulnerabilities in FTPServer.py in pyftpdlib before 0.2.0… CVSS 2.0MEDIUM 6.5
  • TI-2007-06435 The ftp_PORT function in FTPServer.py in pyftpdlib before 0.2.0 does not prevent TCP… CVSS 2.0MEDIUM 6.5
  • TI-2007-06433 FTPServer.py in pyftpdlib before 0.2.0 allows remote attackers to cause a denial of service via a long command. CVSS 2.0MEDIUM 5.0
See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences