Linux Kernel net/socket.c _sys_sendmsg 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 categorized as problematic has been discovered in Linux Kernel. This issue affects the function _sys_sendmsg of the file net/socket.c. Such manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2011-4594. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System) (affected version unknown) and classified as problematic. Affected by this issue is the function _sys_sendmsg of the file net/socket.c. 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 __sys_sendmsg function in net/socket.c in the Linux kernel before 3.1 allows local users to cause a denial of service (system crash) via crafted use of the sendmmsg system call, leading to an incorrect pointer dereference.

The weakness was disclosed 08/25/2011 as confirmed git commit (GIT Repository). The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2011-4594 since 11/29/2011. The exploitation is known to be easy. The attack needs to be approached locally. The successful exploitation needs a simple authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 58275 (CentOS 6 : kernel (CESA-2012:0350)), 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 350692 (Amazon Linux Security Advisory for kernel: ALAS-2012-055).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (71695), Tenable (58275), OSVDB (79838†), Secunia (SA48294†) and Vulnerability Center (SBV-34786†). The entries VDB-4434, VDB-4553, VDB-4488 and VDB-4536 are pretty similar. 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: 5.5
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

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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: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 58275
Nessus Name: CentOS 6 : kernel (CESA-2012:0350)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 881118
OpenVAS Name: CentOS Update for kernel CESA-2012:0350 centos6
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: 🔍

Patch: git.kernel.org

Timelineinfo

08/25/2011 🔍
08/25/2011 +0 days 🔍
11/29/2011 +96 days 🔍
03/07/2012 +99 days 🔍
03/13/2012 +6 days 🔍
04/02/2012 +20 days 🔍
05/17/2012 +45 days 🔍
03/21/2021 +3230 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-4594 (🔍)
GCVE (CVE): GCVE-0-2011-4594
GCVE (VulDB): GCVE-100-4712
X-Force: 71695
Secunia: 48294 - Red Hat update for kernel, Less Critical
OSVDB: 79838
Vulnerability Center: 34786 - Linux Kernel 3.0.4\\3.0.2 \x27copy_from_user\x27 Pointer Dereference Error Can Cause Local DoS, Medium

See also: 🔍

Entryinfo

Created: 03/07/2012 23:32
Updated: 03/21/2021 09:30
Changes: 03/07/2012 23:32 (46), 04/10/2017 18:00 (23), 03/21/2021 09:25 (17), 03/21/2021 09:30 (1)
Complete: 🔍
Cache ID: 216::103

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