Samba up to 4.1.8 nmbd Service sys_recvfrom input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in Samba up to 4.1.8 and classified as problematic. This affects the function sys_recvfrom of the component nmbd Service. The manipulation leads to input validation. This vulnerability is traded as CVE-2014-0244. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Samba up to 4.1.8 (File Transfer Software) and classified as problematic. This issue affects the function sys_recvfrom of the component nmbd Service. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

The sys_recvfrom function in nmbd in Samba 3.6.x before 3.6.24, 4.0.x before 4.0.19, and 4.1.x before 4.1.9 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a malformed UDP packet.

The weakness was shared 06/23/2014 by Stefan Cornelius as Denial of service - CPU loop as confirmed advisory (Website). The advisory is shared at samba.org. The identification of this vulnerability is CVE-2014-0244 since 12/03/2013. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 76449 (Scientific Linux Security Update : samba and samba3x on SL5.x, SL6.x i386/srpm/x86_64), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Scientific Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 185124 (HPE HP-UX CIFS-Server Multiple Vulnerabilities (HPSBUX03574)).

Upgrading to version 3.6.24, 4.0.19 or 4.1.9 eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 16563.

The vulnerability is also documented in the databases at X-Force (94058), Tenable (76449), SecurityFocus (BID 68148†), Secunia (SA59378†) and SecurityTracker (ID 1030455†). The entries VDB-7563, VDB-11176, VDB-12681 and VDB-13388 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 76449
Nessus Name: Scientific Linux Security Update : samba and samba3x on SL5.x, SL6.x i386/srpm/x86_64
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 702966
OpenVAS Name: Debian Security Advisory DSA 2966-1 (samba - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Samba 3.6.24/4.0.19/4.1.9
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

Fortigate IPS: 🔍

Timelineinfo

12/03/2013 🔍
06/12/2014 +191 days 🔍
06/23/2014 +11 days 🔍
06/23/2014 +0 days 🔍
06/23/2014 +0 days 🔍
06/23/2014 +0 days 🔍
06/24/2014 +1 days 🔍
07/02/2014 +8 days 🔍
07/10/2014 +8 days 🔍
03/17/2015 +250 days 🔍
08/01/2021 +2329 days 🔍

Sourcesinfo

Product: samba.org

Advisory: Denial of service - CPU loop
Researcher: Stefan Cornelius
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-0244 (🔍)
GCVE (CVE): GCVE-0-2014-0244
GCVE (VulDB): GCVE-100-43529

OVAL: 🔍

X-Force: 94058 - Samba sys_recvfrom denial of service, Medium Risk
SecurityFocus: 68148 - Samba 'nmbd' NetBIOS Name Serives Daemon Denial of Service Vulnerability
Secunia: 59378 - SUSE update for samba, Less Critical
SecurityTracker: 1030455 - Samba smbd and nmbd Processing Flaws Let Remote Users Deny Service
Vulnerability Center: 45105 - Samba 3.6.0 Through 4.1.8 Remote DoS via a Malformed UDP Packet, Low

See also: 🔍

Entryinfo

Created: 03/17/2015 12:19
Updated: 08/01/2021 16:07
Changes: 03/17/2015 12:19 (80), 05/31/2017 09:03 (14), 08/01/2021 16:07 (3)
Complete: 🔍
Cache ID: 216:5C7:103

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