Samba up to 3.0.22 memory allocation

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

Summaryinfo

A vulnerability identified as problematic has been detected in Samba. The affected element is an unknown function. Performing a manipulation results in memory allocation. This vulnerability is reported as CVE-2006-3403. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Samba (File Transfer Software). This affects some unknown functionality. The manipulation with an unknown input leads to a memory allocation vulnerability. CWE is classifying the issue as CWE-789. The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated. This is going to have an impact on availability. The summary by CVE is:

The smdb daemon (smbd/service.c) in Samba 3.0.1 through 3.0.22 allows remote attackers to cause a denial of service (memory consumption) via a large number of share connection requests.

The bug was discovered 07/10/2006. The weakness was disclosed 07/12/2006 (Website). The advisory is shared at us-cert.gov. This vulnerability is uniquely identified as CVE-2006-3403 since 07/06/2006. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 22108 (GLSA-200607-10 : Samba: Denial of Service vulnerability), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115471 (Apple Mac OS X Security Update 2006-007 Not Installed (APPLE-SA-2006-11-28)).

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

The vulnerability is also documented in the databases at X-Force (27648), Tenable (22108), SecurityFocus (BID 18927†), OSVDB (27130†) and Secunia (SA20980†). The entries VDB-27241, VDB-32357, VDB-32356 and VDB-33509 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory allocation
CWE: CWE-789 / CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 22108
Nessus Name: GLSA-200607-10 : Samba: Denial of Service vulnerability
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 57107
OpenVAS Name: Debian Security Advisory DSA 1110-1 (samba)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

07/06/2006 🔍
07/10/2006 +4 days 🔍
07/10/2006 +0 days 🔍
07/10/2006 +0 days 🔍
07/11/2006 +1 days 🔍
07/12/2006 +1 days 🔍
07/12/2006 +0 days 🔍
07/12/2006 +0 days 🔍
07/18/2006 +6 days 🔍
07/25/2006 +7 days 🔍
07/28/2006 +3 days 🔍
03/12/2015 +3149 days 🔍
06/15/2025 +3748 days 🔍

Sourcesinfo

Product: samba.org

Advisory: us-cert.gov
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-3403 (🔍)
GCVE (CVE): GCVE-0-2006-3403
GCVE (VulDB): GCVE-100-31257

OVAL: 🔍

CERT: 🔍
X-Force: 27648
SecurityFocus: 18927 - Samba Internal Data Structures Denial of Service Vulnerability
Secunia: 20980 - Samba Multiple Share Connection Requests Denial of Service, Less Critical
OSVDB: 27130 - CVE-2006-3403 - Samba - Denial of Service Issue
SecurityTracker: 1016459
Vulnerability Center: 12304 - Samba smbd Daemon Remote Denial of Service Via a Large Number of Share Connection Requests, High
Vupen: ADV-2006-2745

See also: 🔍

Entryinfo

Created: 03/12/2015 14:25
Updated: 06/15/2025 17:53
Changes: 03/12/2015 14:25 (83), 06/22/2019 16:30 (5), 01/20/2025 23:41 (17), 06/15/2025 17:53 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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