Linux Kernel prior 2.6.39 fs/proc/task_mmu.c m_stop input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Linux Kernel. Affected by this issue is the function m_stop of the file fs/proc/task_mmu.c. Such manipulation leads to input validation. This vulnerability is traded as CVE-2011-3637. There is no exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System). It has been rated as problematic. Affected by this issue is the function m_stop of the file fs/proc/task_mmu.c. 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. CVE summarizes:

The m_stop function in fs/proc/task_mmu.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (OOPS) via vectors that trigger an m_start error.

The weakness was shared 01/10/2012 as not defined posting (Red Hat Security Advisory). The advisory is shared for download at rhn.redhat.com. The vendor cooperated in the coordination of the public release. This vulnerability is handled as CVE-2011-3637 since 09/21/2011. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 57485 (CentOS 5 : kernel (CESA-2012:0007)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 120013 (CentOS Security Update for Kernel (CESA-2012:0007)).

Upgrading to version 2.6.39 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The best possible mitigation is suggested to be patching the affected component. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (72287), Tenable (57485), SecurityFocus (BID 51361†), OSVDB (78302†) and Secunia (SA47511†). The entries VDB-4416, VDB-4543, VDB-4545 and VDB-61074 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.2
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 57485
Nessus Name: CentOS 5 : kernel (CESA-2012:0007)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 881222
OpenVAS Name: CentOS Update for kernel CESA-2012:0007 centos5
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Upgrade: Kernel 2.6.39

Timelineinfo

09/21/2011 🔍
01/10/2012 +111 days 🔍
01/10/2012 +0 days 🔍
01/10/2012 +0 days 🔍
01/11/2012 +1 days 🔍
01/15/2012 +4 days 🔍
01/21/2012 +5 days 🔍
05/17/2012 +117 days 🔍
05/17/2012 +0 days 🔍
03/20/2021 +3229 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: rhn.redhat.com
Status: Not defined
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2011-3637 (🔍)
GCVE (CVE): GCVE-0-2011-3637
GCVE (VulDB): GCVE-100-4544

OVAL: 🔍

X-Force: 72287
SecurityFocus: 51361 - Linux Kernel 'm_stop()' Local Denial of Service Vulnerability
Secunia: 47511 - Red Hat update for kernel-rt, Less Critical
OSVDB: 78302
Vulnerability Center: 35079 - Linux Kernel 2.6.0 - 2.6.39 \x27m_stop()\x27 Error Allows Local Denial of Service Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 01/21/2012 01:00
Updated: 03/20/2021 14:00
Changes: 01/21/2012 01:00 (79), 08/18/2017 13:49 (3), 03/20/2021 13:56 (12), 03/20/2021 14:00 (1)
Complete: 🔍
Cache ID: 216::103

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