Linux Kernel shmem_fallocate denial of service

CVSS Meta Temp Score
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CTI Interest Score
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2.9$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Linux Kernel. This issue affects the function shmem_fallocate. Executing a manipulation can lead to denial of service. This vulnerability is registered as CVE-2014-4171. No exploit is available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability has been found in Linux Kernel (Operating System) (unknown version) and classified as problematic. This vulnerability affects the function shmem_fallocate. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability.

The weakness was published 06/17/2014 by Hugh Dickins as confirmed patch (Mailing List). The advisory is shared for download at spinics.net. This vulnerability was named CVE-2014-4171 since 06/17/2014. The exploitation appears to be easy. The attack needs to be approached locally. The requirement for exploitation is a single authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 81067 (Oracle Linux 7 : kernel (ELSA-2015-0102)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195600 (Ubuntu Security Notification for Linux Vulnerabilities (USN-2334-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at spinics.net.

The vulnerability is also documented in the databases at X-Force (93870), Tenable (81067), SecurityFocus (BID 68157†), Secunia (SA59777†) and SecurityTracker (ID 1030450†). Similar entries are available at VDB-67043, VDB-67287, VDB-43527 and VDB-65958. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 2.9

VulDB Base Score: 3.3
VulDB Temp Score: 2.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 81067
Nessus Name: Oracle Linux 7 : kernel (ELSA-2015-0102)
Nessus File: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 800909
OpenVAS Name: Fedora Update for kernel FEDORA-2015-5024
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: spinics.net

Timelineinfo

06/17/2014 🔍
06/17/2014 +0 days 🔍
06/17/2014 +0 days 🔍
06/17/2014 +0 days 🔍
06/18/2014 +1 days 🔍
06/23/2014 +5 days 🔍
09/04/2014 +73 days 🔍
01/29/2015 +147 days 🔍
02/01/2015 +3 days 🔍
03/12/2015 +39 days 🔍
06/19/2017 +830 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: spinics.net
Researcher: Hugh Dickins
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-4171 (🔍)
GCVE (CVE): GCVE-0-2014-4171
GCVE (VulDB): GCVE-100-34060

OVAL: 🔍

X-Force: 93870 - Linux Kernel shmem_fallocate() denial of service, Medium Risk
SecurityFocus: 68157 - Linux Kernel 'shmem.c' CVE-2014-4171 Local Denial of Service Vulnerability
Secunia: 59777 - Ubuntu update for kernel, Moderately Critical
SecurityTracker: 1030450 - Linux Kernel shmem_fallocate() Bug Lets Local Users Deny Service
Vulnerability Center: 48386 - Linux Kernel through 3.15.1 Local DoS via the Mmap System Call, Medium

See also: 🔍

Entryinfo

Created: 03/12/2015 22:21
Updated: 06/19/2017 08:14
Changes: 03/12/2015 22:21 (76), 06/19/2017 08:14 (12)
Complete: 🔍
Cache ID: 216:5D0:103

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