Linux Kernel up to 3.18.1 Thread Local Storage tls.c access control

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.
3.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel up to 3.18.1. Affected by this vulnerability is an unknown functionality of the file tls.c of the component Thread Local Storage. The manipulation results in access control. This vulnerability is cataloged as CVE-2014-8133. There is no exploit available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel up to 3.18.1 (Operating System). Affected is some unknown functionality of the file tls.c of the component Thread Local Storage. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on integrity.

The weakness was shared 12/15/2014 by Andy Lutomirski (oss-sec). The advisory is available at openwall.com. This vulnerability is traded as CVE-2014-8133 since 10/10/2014. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 81569 (Ubuntu 14.04 LTS : linux vulnerabilities (USN-2516-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 167410 (SUSE Enterprise Linux Security update for Linux kernel (SUSE-SU-2014:1698-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

The vulnerability is also documented in the databases at X-Force (99810), Tenable (81569), SecurityFocus (BID 71684†), Secunia (SA62801†) and Vulnerability Center (SBV-48486†). The entries VDB-68092, VDB-68280, VDB-68439 and VDB-68459 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.5

VulDB Base Score: 4.0
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 81569
Nessus Name: Ubuntu 14.04 LTS : linux vulnerabilities (USN-2516-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 867487
OpenVAS Name: Fedora Update for kernel FEDORA-2014-17283
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 41bdc78544b8a93a9c6814b8bbbfef966272abbe

Timelineinfo

10/10/2014 🔍
12/15/2014 +66 days 🔍
12/15/2014 +0 days 🔍
12/15/2014 +0 days 🔍
12/17/2014 +2 days 🔍
01/13/2015 +27 days 🔍
02/05/2015 +23 days 🔍
02/05/2015 +0 days 🔍
02/27/2015 +22 days 🔍
03/02/2022 +2560 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-2516-1
Researcher: Andy Lutomirski
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-8133 (🔍)
GCVE (CVE): GCVE-0-2014-8133
GCVE (VulDB): GCVE-100-68574

OVAL: 🔍

X-Force: 99810 - Linux Kernel Thread Local Storage security bypass, Low Risk
SecurityFocus: 71684 - Linux Kernel 'kernel/tls.c' Local Information Disclosure Vulnerability
Secunia: 62801 - Ubuntu update for kernel, Not Critical
Vulnerability Center: 48486 - Linux Kernel <=3.18.1 Local ASLR Security Bypass via a set_thread_area System Call, Low

See also: 🔍

Entryinfo

Created: 01/13/2015 14:34
Updated: 03/02/2022 08:26
Changes: 01/13/2015 14:34 (78), 06/19/2017 08:32 (6), 03/02/2022 08:20 (5), 03/02/2022 08:22 (1), 03/02/2022 08:26 (2)
Complete: 🔍
Cache ID: 216:108:103

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!