DConnect DConnect Daemon up to 0.7.0 cmd.dc.c dc_chat null pointer dereference

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

Summaryinfo

A vulnerability categorized as problematic has been discovered in DConnect DConnect Daemon up to 0.7.0. This impacts the function dc_chat of the file cmd.dc.c. The manipulation results in null pointer dereference. This vulnerability was named CVE-2006-4126. In addition, an exploit is available.

Detailsinfo

A vulnerability classified as problematic has been found in DConnect DConnect Daemon up to 0.7.0. Affected is the function dc_chat of the file cmd.dc.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. CVE summarizes:

The dc_chat function in cmd.dc.c in DConnect Daemon 0.7.0 and earlier allows remote attackers to cause a denial of service (application crash) by sending a client message before providing the nickname, which triggers a null pointer dereference.

The weakness was presented 08/14/2006 by Luigi Auriemma (Website). The advisory is shared for download at securityfocus.com. This vulnerability is traded as CVE-2006-4126 since 08/14/2006. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. 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.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (28279), Exploit-DB (28345), SecurityFocus (BID 19370†), Secunia (SA21384†) and SecurityTracker (ID 1016641†). See VDB-31789 and VDB-31787 for similar entries. Once again VulDB remains the best source 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: 4.8

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

CVSSv2info

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/06/2006 🔍
08/07/2006 +1 days 🔍
08/07/2006 +0 days 🔍
08/14/2006 +7 days 🔍
08/14/2006 +0 days 🔍
08/14/2006 +0 days 🔍
03/12/2015 +3132 days 🔍
03/15/2025 +3656 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Luigi Auriemma
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-4126 (🔍)
GCVE (CVE): GCVE-0-2006-4126
GCVE (VulDB): GCVE-100-31788
X-Force: 28279 - DConnect Daemon dc_chat() denial of service
SecurityFocus: 19370 - DConnect Daemon DC Chat Denial of Service Vulnerability
Secunia: 21384 - DConnect Daemon Multiple Vulnerabilities, Highly Critical
SecurityTracker: 1016641 - DConnect Daemon Format String and Buffer Overflow Flaws Let Remote Users Deny Service or Execute Arbitrary Code
Vupen: ADV-2006-3181

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

Entryinfo

Created: 03/12/2015 15:51
Updated: 03/15/2025 23:47
Changes: 03/12/2015 15:51 (54), 09/22/2017 11:14 (14), 03/15/2025 23:47 (18)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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