G.rodola pyftpdlib up to 0.5.1 accept 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 described as problematic has been identified in G.rodola pyftpdlib up to 0.5.1. This impacts the function Accept. Such manipulation leads to race condition. This vulnerability is referenced as CVE-2010-3494. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in G.rodola pyftpdlib up to 0.5.1 and classified as problematic. Affected by this issue is the function accept. The manipulation with an unknown input leads to a race condition vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. CVE summarizes:

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 accept function having an unexpected value of None for the address, or an ECONNABORTED, EAGAIN, or EWOULDBLOCK error, a related issue to CVE-2010-3492.

The weakness was published 10/19/2010 (Website). The advisory is available at bugs.python.org. This vulnerability is handled as CVE-2010-3494 since 09/24/2010. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details 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 (62707), Tenable (50482), SecurityFocus (BID 43233†) and Vulnerability Center (SBV-28051†). Similar entries are available at VDB-55131, VDB-55128, VDB-55125 and VDB-55124. If you want to get best quality of vulnerability data, you may have to visit VulDB.

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: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

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: 🔍

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

09/15/2010 🔍
09/15/2010 +0 days 🔍
09/24/2010 +9 days 🔍
10/19/2010 +25 days 🔍
10/19/2010 +0 days 🔍
11/08/2010 +20 days 🔍
03/19/2015 +1592 days 🔍
09/27/2021 +2384 days 🔍

Sourcesinfo

Advisory: bugs.python.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2010-3494 (🔍)
GCVE (CVE): GCVE-0-2010-3494
GCVE (VulDB): GCVE-100-55130
X-Force: 62707
SecurityFocus: 43233 - Python Asyncore Module 'accept()' function Remote Denial of Service Vulnerability
Vulnerability Center: 28051 - FTPHandler class 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 11:20
Changes: 03/19/2015 14:37 (59), 03/08/2017 22:07 (10), 09/27/2021 11:20 (3)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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