Linux Kernel security_context_to_sid_core input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel. It has been rated as problematic. This vulnerability affects the function security_context_to_sid_core. Performing a manipulation results in input validation. This vulnerability is identified as CVE-2014-1874. There is not any exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as problematic has been found in Linux Kernel (Operating System) (version unknown). This affects the function security_context_to_sid_core. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:

The security_context_to_sid_core function in security/selinux/ss/services.c in the Linux kernel before 3.13.4 allows local users to cause a denial of service (system crash) by leveraging the CAP_MAC_ADMIN capability to set a zero-length security context.

The weakness was released 02/17/2014 by Matthew Thode as Kernel: SELinux: local denial-of-service as confirmed bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is uniquely identified as CVE-2014-1874 since 02/06/2014. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 72745 (Amazon Linux AMI : kernel (ALAS-2014-289)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 167228 (SUSE Enterprise Linux Security Update for Linux Kernel (SUSE-SU-2014:0807-1)).

Applying the patch Bug Fix is able to eliminate this problem. The bugfix is ready for download at bugzilla.redhat.com.

The vulnerability is also documented in the databases at X-Force (91306), Tenable (72745), SecurityFocus (BID 65459†), Secunia (SA59309†) and Vulnerability Center (SBV-43497†). Further details are available at marc.info. Entries connected to this vulnerability are available at VDB-11302, VDB-11315, VDB-11755 and VDB-12213. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 5.4

VulDB Base Score: 6.2
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 72745
Nessus Name: Amazon Linux AMI : kernel (ALAS-2014-289)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 867522
OpenVAS Name: Fedora Update for kernel FEDORA-2014-2576
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: Bug Fix

Timelineinfo

01/30/2014 🔍
01/30/2014 +0 days 🔍
02/06/2014 +7 days 🔍
02/17/2014 +11 days 🔍
02/26/2014 +9 days 🔍
02/28/2014 +2 days 🔍
03/10/2014 +10 days 🔍
04/12/2025 +4051 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Kernel: SELinux: local denial-of-service
Researcher: Matthew Thode
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-1874 (🔍)
GCVE (CVE): GCVE-0-2014-1874
GCVE (VulDB): GCVE-100-12411

OVAL: 🔍

X-Force: 91306 - Linux Kernel security_context_to_sid_core() denial of service, Medium Risk
SecurityFocus: 65459 - Linux Kernel 'security_context_to_sid_core()' Function Local Denial of Service Vulnerability
Secunia: 59309
Vulnerability Center: 43497 - Linux Kernel <3.13.4 Local DoS via security_context_to_sid_core(), Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 02/26/2014 13:36
Updated: 04/12/2025 20:13
Changes: 02/26/2014 13:36 (77), 05/22/2017 11:02 (5), 06/09/2021 20:39 (2), 04/12/2025 20:13 (18)
Complete: 🔍
Committer:
Cache ID: 216:99C:103

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