Novell GroupWise 1.0.6/2.0.2 Blowfish nmma.exe null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Novell GroupWise 1.0.6/2.0.2. Affected is an unknown function of the file nmma.exe of the component Blowfish Handler. Executing a manipulation can lead to null pointer dereference. The identification of this vulnerability is CVE-2006-4511. Furthermore, there is an exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability classified as problematic was found in Novell GroupWise 1.0.6/2.0.2 (Groupware Software). This vulnerability affects an unknown functionality of the file nmma.exe of the component Blowfish Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

Messenger Agents (nmma.exe) in Novell GroupWise 2.0.2 and 1.0.6 allows remote attackers to cause a denial of service (crash) via a crafted HTTP POST request to TCP port 8300 with a modified val parameter, which triggers a null dereference related to "zero-size strings in blowfish routines."

The weakness was shared 10/03/2006 by Agent with CIRT.DK (Website). The advisory is shared for download at idefense.com. This vulnerability was named CVE-2006-4511 since 08/31/2006. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a exploit are known.

It is declared as highly functional.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at support.novell.com. A possible mitigation has been published before and not just after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 16028.

The vulnerability is also documented in the databases at X-Force (29319), SecurityFocus (BID 20316†), OSVDB (29486†), Secunia (SA22244†) and SecurityTracker (ID 1016974†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Support

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
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: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: support.novell.com

Snort ID: 16028

Timelineinfo

08/31/2006 🔍
10/02/2006 +32 days 🔍
10/03/2006 +0 days 🔍
10/03/2006 +0 days 🔍
10/03/2006 +0 days 🔍
10/03/2006 +0 days 🔍
10/03/2006 +0 days 🔍
10/04/2006 +0 days 🔍
10/05/2006 +1 days 🔍
04/23/2026 +7140 days 🔍

Sourcesinfo

Vendor: novell.com

Advisory: idefense.com⛔
Researcher: Agent
Organization: CIRT.DK
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-4511 (🔍)
GCVE (CVE): GCVE-0-2006-4511
GCVE (VulDB): GCVE-100-2584
CERT: 🔍
X-Force: 29319 - Novell GroupWise Messenger nmma.exe denial of service, High Risk
SecurityFocus: 20316 - Novell GroupWise Messenger Server Nmma.EXE Denial of Service Vulnerability
Secunia: 22244 - GroupWise Messenger Blowfish Zero-Sized Strings Denial of Service, Moderately Critical
OSVDB: 29486 - Novell GroupWise Messenger Agents nmma.exe Crafted HTTP POST DoS
SecurityTracker: 1016974
Vupen: ADV-2006-3893

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

Entryinfo

Created: 10/04/2006 13:01
Updated: 04/23/2026 13:41
Changes: 10/04/2006 13:01 (75), 04/22/2018 13:13 (9), 11/24/2024 22:52 (26), 04/22/2025 19:55 (2), 04/23/2026 13:41 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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