ProFTPD 1.2.0rc2 Command USER/SIZE resource management

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in ProFTPD 1.2.0rc2. It has been classified as problematic. The affected element is an unknown function of the component Command Handler. Performing a manipulation of the argument USER/SIZE results in resource management. This vulnerability is cataloged as CVE-2001-0136. Furthermore, there is an exploit available. Upgrading the affected component is recommended. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Detailsinfo

A vulnerability was found in ProFTPD 1.2.0rc2 (File Transfer Software). It has been classified as problematic. This affects an unknown code block of the component Command Handler. The manipulation of the argument USER/SIZE with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:

Memory leak in ProFTPd 1.2.0rc2 allows remote attackers to cause a denial of service via a series of USER commands, and possibly SIZE commands if the server has been improperly installed.

The weakness was shared 12/19/2000 by Wojciech Purczynski as not defined posting (Bugtraq). It is possible to read the advisory at archives.neohapsis.com. This vulnerability is uniquely identified as CVE-2001-0136. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a public exploit are known.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 14866 (Debian DSA-029-2 : proftpd - remote DOS & potential buffer overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 27062 (ProFTPD USER Remote Denial of Service Vulnerability).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (5801), Exploit-DB (241), Tenable (14866), SecurityFocus (BID 2366†) and OSVDB (7166†). The entry VDB-82095 is related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
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Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 14866
Nessus Name: Debian DSA-029-2 : proftpd - remote DOS & potential buffer overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 53791
OpenVAS Name: Debian Security Advisory DSA 029-1 (proftpd)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
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Timelineinfo

12/19/2000 🔍
12/19/2000 +0 days 🔍
12/19/2000 +0 days 🔍
02/11/2001 +54 days 🔍
03/12/2001 +29 days 🔍
04/09/2004 +1123 days 🔍
08/23/2004 +136 days 🔍
09/29/2004 +37 days 🔍
07/03/2014 +3564 days 🔍
10/08/2025 +4115 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Researcher: Wojciech Purczynski
Status: Confirmed

CVE: CVE-2001-0136 (🔍)
GCVE (CVE): GCVE-0-2001-0136
GCVE (VulDB): GCVE-100-16539
X-Force: 5801 - proftpd memory leak when using SIZE or USER commands
SecurityFocus: 2366 - ProFTPD USER Remote Denial of Service Vulnerability
OSVDB: 7166 - ProFTPD SIZE Command Memory Leak DoS
Vulnerability Center: 5173 - DoS in ProFTPD via USER or SIZE Commands, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 07/03/2014 03:50 PM
Updated: 10/08/2025 07:17 AM
Changes: 07/03/2014 03:50 PM (84), 05/24/2019 11:40 AM (1), 09/24/2024 12:27 AM (16), 10/08/2025 07:17 AM (4)
Complete: 🔍
Cache ID: 244:1D5:40

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