G.rodola pyftpdlib up to 0.5.1 getpeername race condition

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in G.rodola pyftpdlib up to 0.5.1. It has been classified as problematic. This affects the function getpeername. This manipulation causes race condition. This vulnerability appears as CVE-2009-5011. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in G.rodola pyftpdlib up to 0.5.1. It has been declared as problematic. Affected by this vulnerability is the function getpeername. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect availability. The summary by CVE is:

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.

The weakness was presented 10/19/2010 as tp://co (Website). It is possible to read the advisory at code.google.com. This vulnerability is known as CVE-2009-5011 since 10/19/2010. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 50482 (Fedora 12 : pyftpdlib-0.5.2-1.fc12 (2010-16731)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.

Upgrading to version 0.3.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (62701), Tenable (50482), SecurityFocus (BID 43233†) and Vulnerability Center (SBV-28046†). See VDB-3516, VDB-47987, VDB-47513 and VDB-50835 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 50482
Nessus Name: Fedora 12 : pyftpdlib-0.5.2-1.fc12 (2010-16731)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 862516
OpenVAS Name: Fedora Update for pyftpdlib FEDORA-2010-16731
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: pyftpdlib 0.3.0

Timelineinfo

02/27/2009 🔍
09/15/2010 +565 days 🔍
10/19/2010 +34 days 🔍
10/19/2010 +0 days 🔍
10/19/2010 +0 days 🔍
11/05/2010 +17 days 🔍
11/08/2010 +3 days 🔍
03/19/2015 +1592 days 🔍
09/27/2021 +2384 days 🔍

Sourcesinfo

Advisory: tp://co
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-5011 (🔍)
GCVE (CVE): GCVE-0-2009-5011
GCVE (VulDB): GCVE-100-55123
X-Force: 62701
SecurityFocus: 43233 - Python Asyncore Module 'accept()' function Remote Denial of Service Vulnerability
Vulnerability Center: 28046 - ftpserver.py in Pyftpdlib before 0.5.2 Remote DoS Vulnerability via a TCP Connection, Medium

See also: 🔍

Entryinfo

Created: 03/19/2015 14:37
Updated: 09/27/2021 10:42
Changes: 03/19/2015 14:37 (62), 03/08/2017 22:06 (10), 09/27/2021 10:42 (3)
Complete: 🔍
Cache ID: 216::103

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