Alt-N MDaemon 2.8.5.0 UIDL Command denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Alt-N MDaemon 2.8.5.0. This affects an unknown part of the component UIDL Command Handler. The manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2000-0501. Moreover, an exploit is present. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Alt-N MDaemon 2.8.5.0 (Mail Server Software). It has been rated as problematic. This issue affects an unknown code of the component UIDL Command Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

Race condition in MDaemon 2.8.5.0 POP server allows local users to cause a denial of service by entering a UIDL command and quickly exiting the server.

The weakness was disclosed 06/16/2000 with freenet.de (Website). The advisory is shared at xforce.iss.net. The identification of this vulnerability is CVE-2000-0501. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The commercial vulnerability scanner Qualys is able to test this issue with plugin 74029 (Alt-N MDaemon 2.8.5.0 UIDL Denial of Service Vulnerability).

Upgrading to version 3.0.4 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (4745), Exploit-DB (20020), SecurityFocus (BID 1366†) and Vulnerability Center (SBV-3132†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.7
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MDaemon 3.0.4

Timelineinfo

06/16/2000 🔍
06/16/2000 +0 days 🔍
06/16/2000 +0 days 🔍
06/16/2000 +0 days 🔍
12/10/2003 +1272 days 🔍
06/25/2014 +3850 days 🔍
10/14/2025 +4129 days 🔍

Sourcesinfo

Vendor: altn.com

Advisory: xforce.iss.net
Organization: freenet.de
Status: Confirmed

CVE: CVE-2000-0501 (🔍)
GCVE (CVE): GCVE-0-2000-0501
GCVE (VulDB): GCVE-100-15677
X-Force: 4745
SecurityFocus: 1366 - Alt-N MDaemon 2.8.5.0 UIDL DoS Vulnerability
Vulnerability Center: 3132 - Mdaemon 2.8.5.0 POP Server DoS, Medium

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

Entryinfo

Created: 06/25/2014 12:12
Updated: 10/14/2025 03:10
Changes: 06/25/2014 12:12 (57), 05/18/2019 08:28 (3), 02/01/2025 14:42 (27), 10/14/2025 03:10 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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