Linux Kernel 2.6.x CIFSFindNext numeric error

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Linux Kernel 2.6.x. The affected element is the function CIFSFindNext. Such manipulation leads to numeric error. This vulnerability is documented as CVE-2011-3191. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.x (Operating System) and classified as problematic. Affected by this issue is the function CIFSFindNext. The manipulation with an unknown input leads to a numeric error vulnerability. Using CWE to declare the problem leads to CWE-189. Impacted is availability. CVE summarizes:

Integer signedness error in the CIFSFindNext function in fs/cifs/cifssmb.c in the Linux kernel before 3.1 allows remote CIFS servers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a large length value in a response to a read request for a directory.

The weakness was released 08/24/2011 by Darren Lavender (Website). The advisory is available at patchwork.kernel.org. This vulnerability is handled as CVE-2011-3191 since 08/19/2011. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 864056 , which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 216031 (VMware ESX 4.x Several Security Vulnerabilities (VMSA-2012-0006)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at patchwork.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (864056), SecurityFocus (BID 49295†), Secunia (SA45695†) and Vulnerability Center (SBV-32847†). Entries connected to this vulnerability are available at VDB-4504, VDB-4545, VDB-5529 and VDB-64249. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
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: 864056
Nessus File: 🔍
Nessus Risk: 🔍

OpenVAS ID: 881021
OpenVAS Name: CentOS Update for kernel CESA-2011:1386 centos5 i386
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: patchwork.kernel.org

Timelineinfo

08/19/2011 🔍
08/23/2011 +4 days 🔍
08/23/2011 +0 days 🔍
08/24/2011 +1 days 🔍
08/24/2011 +0 days 🔍
08/25/2011 +1 days 🔍
09/16/2011 +22 days 🔍
04/02/2012 +199 days 🔍
05/24/2012 +52 days 🔍
03/19/2021 +3221 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: patchwork.kernel.org
Researcher: Darren Lavender
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-3191 (🔍)
GCVE (CVE): GCVE-0-2011-3191
GCVE (VulDB): GCVE-100-4406

OVAL: 🔍
IAVM: 🔍

SecurityFocus: 49295 - Linux Kernel 'CIFSFindNext()' Function Denial of Service Vulnerability
Secunia: 45695 - Linux Kernel "CIFSFindNext()" Signedness Error Denial of Service Vulnerability, Not Critical
Vulnerability Center: 32847 - Linux Kernel 2.6 through 2.6.39-rc6 Remote DoS Vulnerability via a Crafted CIFS Message, High

See also: 🔍

Entryinfo

Created: 09/16/2011 02:00
Updated: 03/19/2021 14:37
Changes: 09/16/2011 02:00 (76), 03/30/2017 09:46 (11), 03/19/2021 14:37 (13)
Complete: 🔍
Cache ID: 216:91C:103

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