Linux Kernel 3.13.0 Empty Security Context Value services.c security_context_to_sid_core Local denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Kernel 3.13.0. It has been rated as problematic. This affects the function security_context_to_sid_core of the file security/selinux/ss/services.c of the component Empty Security Context Value Handler. Performing a manipulation results in denial of service (Local). Additionally, an exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Linux Kernel 3.13.0 (Operating System). It has been classified as problematic. This affects the function security_context_to_sid_core of the file security/selinux/ss/services.c of the component Empty Security Context Value Handler. The manipulation with an unknown input leads to a denial of service vulnerability (Local). CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability.

The weakness was released 01/30/2014 by Matthew Thode as 1062356 as confirmed bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. The public release was coordinated with Linux. An attack has to be approached locally. Technical details and a public exploit are known.

A public exploit has been developed by Matthew Thode and been published immediately after the advisory. The exploit is shared for download at marc.info. It is declared as proof-of-concept.

Applying the patch Bug Fix is able to eliminate this problem. The bugfix is ready for download at bugzilla.redhat.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at OSVDB (102931†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

3.13.0

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.5
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Matthew Thode
Download: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Exploit Delay Time: 🔍

Patch: Bug Fix

Timelineinfo

01/30/2014 🔍
01/30/2014 +0 days 🔍
01/30/2014 +0 days 🔍
02/07/2014 +8 days 🔍
03/29/2019 +1876 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 1062356
Researcher: Matthew Thode
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-12201
OSVDB: 102931

Entryinfo

Created: 02/07/2014 09:22
Updated: 03/29/2019 15:57
Changes: 02/07/2014 09:22 (53), 03/29/2019 15:57 (2)
Complete: 🔍
Committer:
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.