Samba smbd up to 3.6.3 Connection Request Parser information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Samba smbd up to 3.6.3. It has been rated as problematic. This impacts an unknown function of the component Connection Request Parser. This manipulation causes information disclosure. This vulnerability is registered as CVE-2012-0817. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Samba smbd up to 3.6.3 (File Transfer Software) and classified as critical. Affected by this vulnerability is an unknown function of the component Connection Request Parser. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect availability. The summary by CVE is:

Memory leak in smbd in Samba 3.6.x before 3.6.3 allows remote attackers to cause a denial of service (memory and CPU consumption) by making many connection requests.

The weakness was published 01/29/2012 (Website). The advisory is shared at samba.org. This vulnerability is known as CVE-2012-0817 since 01/19/2012. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 74545 (openSUSE Security Update : samba (openSUSE-2012-109)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks.

Upgrading to version 3.6.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (72775), Tenable (74545), SecurityFocus (BID 51713†), OSVDB (78651†) and Secunia (SA47763†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 74545
Nessus Name: openSUSE Security Update : samba (openSUSE-2012-109)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 863940
OpenVAS Name: Fedora Update for samba FEDORA-2012-1098
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: smbd 3.6.3

Timelineinfo

01/19/2012 🔍
01/29/2012 +10 days 🔍
01/29/2012 +0 days 🔍
01/30/2012 +1 days 🔍
01/30/2012 +0 days 🔍
01/30/2012 +0 days 🔍
01/30/2012 +0 days 🔍
01/30/2012 +0 days 🔍
02/06/2012 +7 days 🔍
02/21/2012 +15 days 🔍
06/13/2014 +843 days 🔍
03/20/2021 +2472 days 🔍

Sourcesinfo

Advisory: samba.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2012-0817 (🔍)
GCVE (CVE): GCVE-0-2012-0817
GCVE (VulDB): GCVE-100-4585
X-Force: 72775
SecurityFocus: 51713 - Samba Memory Leak Local Denial Of Service Vulnerability
Secunia: 47763 - Samba Connection Request Memory Leak Denial of Service Vulnerability, Less Critical
OSVDB: 78651
SecurityTracker: 1026595 - Samba smbd Memory Leak Lets Remote Users Deny Service
Vulnerability Center: 34391 - Samba 3.6.x Before 3.6.3 SMBD Remote DoS Vulnerability, High

Entryinfo

Created: 02/21/2012 01:00
Updated: 03/20/2021 16:20
Changes: 02/21/2012 01:00 (71), 04/09/2017 14:27 (11), 03/20/2021 16:20 (3)
Complete: 🔍
Cache ID: 216:B07:103

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