CVE-2009-5010 — Race Condition in Pyftpdlib

CWE-362 — Race Condition5 documents4 sources
Severity
4.3MEDIUMNVD
EPSS
1.0%
top 22.56%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
G.rodola PyftpdlibDebian Python-pyftpdlib
Timeline
PublishedOct 19
Latest updateMay 2

Description

Race condition in the FTPHandler class in ftpserver.py in pyftpdlib before 0.5.1 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 return value of None, a different vulnerability than CVE-2010-3494.

CVSS vector

AV:N/AC:M/C:N/I:N/A:PExploitability: 8.6 | Impact: 2.9

Affected Packages3 packages

▶PyPIg.rodola/pyftpdlib< 0.5.1
▶NVDg.rodola/pyftpdlib0.5.0+5

Patches

Patch: bugs.python.org ↗Patch: bugs.python.org ↗

🔴Vulnerability Details

3
OSV
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in pyftpdlib↗2022-05-02
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GHSA
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in pyftpdlib↗2022-05-02
▶
OSV
CVE-2009-5010: Race condition in the FTPHandler class in ftpserver↗2010-10-19
▶

📋Vendor Advisories

1
Debian
CVE-2009-5010: python-pyftpdlib - Race condition in the FTPHandler class in ftpserver.py in pyftpdlib before 0.5.1...↗2009
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