Linux Kernel mem_cgroup_usage_unregister_event denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Linux Kernel. This affects the function mem_cgroup_usage_unregister_event. Such manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2012-1146. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel (Operating System) (the affected version unknown). Affected by this issue is the function mem_cgroup_usage_unregister_event. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. CVE summarizes:

The mem_cgroup_usage_unregister_event function in mm/memcontrol.c in the Linux kernel before 3.2.10 does not properly handle multiple events that are attached to the same eventfd, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by registering memory threshold events.

The weakness was disclosed 03/07/2012 by Kurt Seifried with Red Hat (oss-sec). The advisory is shared for download at openwall.com. This vulnerability is handled as CVE-2012-1146 since 02/14/2012. The attack needs to be approached locally. A simple authentication is necessary for exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 58488 (Fedora 15 : kernel-2.6.42.12-1.fc15 (2012-3715)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

The vulnerability is also documented in the databases at X-Force (75722), Tenable (58488), SecurityFocus (BID 52324†), OSVDB (80554†) and Secunia (SA48544†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 58488
Nessus Name: Fedora 15 : kernel-2.6.42.12-1.fc15 (2012-3715)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 864592
OpenVAS Name: Fedora Update for kernel FEDORA-2012-11348
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

02/14/2012 🔍
03/07/2012 +22 days 🔍
03/07/2012 +0 days 🔍
03/07/2012 +0 days 🔍
03/08/2012 +1 days 🔍
03/20/2012 +12 days 🔍
03/27/2012 +7 days 🔍
04/02/2012 +6 days 🔍
05/17/2012 +45 days 🔍
03/22/2021 +3231 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: openwall.com
Researcher: Kurt Seifried
Organization: Red Hat
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-1146 (🔍)
GCVE (CVE): GCVE-0-2012-1146
GCVE (VulDB): GCVE-100-4952

OVAL: 🔍

X-Force: 75722
SecurityFocus: 52324 - Linux Kernel 'memcg' NULL Pointer Deference Local Denial of Service Vulnerability
Secunia: 48544 - Ubuntu update for kernel, Less Critical
OSVDB: 80554
Vulnerability Center: 34583 - Linux Kernel memcg Memory Resource Controller Null Pointer Dereference Allows DoS, Medium

Entryinfo

Created: 04/02/2012 11:25
Updated: 03/22/2021 10:56
Changes: 04/02/2012 11:25 (71), 04/10/2017 10:40 (9), 03/22/2021 10:54 (11), 03/22/2021 10:56 (1)
Complete: 🔍
Cache ID: 216::103

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