Linux Kernel up to 3.3.5 Hugepages Quota resource management

CVSS Meta Temp Score
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CTI Interest Score
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4.5$0-$5k0.00

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 3.3.5 (Operating System). Affected by this issue is an unknown functionality of the component Hugepages Quota. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. CVE summarizes:

Use-after-free vulnerability in the Linux kernel before 3.3.6, when huge pages are enabled, allows local users to cause a denial of service (system crash) or possibly gain privileges by interacting with a hugetlbfs filesystem, as demonstrated by a umount operation that triggers improper handling of quota data.

The weakness was shared 05/10/2012 by Shachar Raindel as DSA-2469-1 as not defined knowledge base article (Website). The advisory is shared for download at debian.org. This vulnerability is handled as CVE-2012-2133 since 04/04/2012. The exploitation is known to be difficult. The attack needs to be approached locally. The successful exploitation needs a simple authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 68688 (Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2012-2044)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350605 (Amazon Linux Security Advisory for kernel: ALAS-2012-142).

Upgrading to version 2.6.32-45 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 (75168) and Tenable (68688). The entries 5383, 5386, 63659 and 63235 are related to this item.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.5

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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Nessus ID: 68688
Nessus Name: Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2012-2044)
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 892469
OpenVAS Name: Debian Security Advisory DSA 2469-1 (linux-2.6 - privilege escalation/denial of service
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
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Upgrade: Kernel 2.6.32-45

Timelineinfo

04/04/2012 🔍
04/24/2012 +20 days 🔍
04/24/2012 +0 days 🔍
05/10/2012 +16 days 🔍
05/10/2012 +0 days 🔍
05/11/2012 +1 days 🔍
05/12/2012 +1 days 🔍
05/15/2012 +3 days 🔍
07/03/2012 +49 days 🔍
07/09/2012 +6 days 🔍
07/12/2013 +368 days 🔍
03/24/2021 +2812 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: DSA-2469-1
Researcher: Shachar Raindel
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-2133 (🔍)
OVAL: 🔍

X-Force: 75168
Vulnerability Center: 35502 - Linux Kernel before 3.3.6 Local Denial of Service Vulnerability, Medium
SecurityFocus: 53233 - Linux Kernel Hugepages CVE-2012-2133 Local Denial of Service Vulnerability
Secunia: 49098 - Debian update for linux-2.6, Less Critical
OSVDB: 81813

See also: 🔍

Entryinfo

Created: 05/15/2012 11:20
Updated: 03/24/2021 15:03
Changes: 05/15/2012 11:20 (76), 04/14/2017 14:01 (11), 03/24/2021 15:03 (3)
Complete: 🔍

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