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.
7.5	$0-$5k	0.00

A vulnerability, which was classified as critical, has been found in Linux Kernel 4.3-rc1 (Operating System). This issue affects the function hugetlb_vmtruncate_list of the file fs/hugetlbfs/inode.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 confidentiality, integrity, and availability.

The weakness was published 02/09/2016 by John Haxby as confirmed git commit (GIT Repository). It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2016-0617 since 12/08/2015. The exploitation is known to be easy. Attacking locally is a requirement. Required for exploitation is a simple authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 89570 (Fedora 23 : kernel-4.4.2-301.fc23 (2016-7e12ae5359)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 124966 (Fedora Security Update for kernel (FEDORA-2016-9fbe2c258b)).

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 vulnerability database at Tenable (89570). Similar entries are available at 87808 and 98135.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 4.3-rc1

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.5

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
ATT&CK: T1499

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 89570
Nessus Name: Fedora 23 : kernel-4.4.2-301.fc23 (2016-7e12ae5359)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 63376
OpenVAS Name: Oracle Linux Local Check: ELSA-2016-3529
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

12/08/2015 🔍
02/07/2016 +61 days 🔍
02/08/2016 +1 days 🔍
02/09/2016 +0 days 🔍
02/09/2016 +0 days 🔍
02/09/2016 +0 days 🔍
02/09/2016 +0 days 🔍
02/15/2016 +5 days 🔍
03/03/2016 +17 days 🔍
09/30/2016 +210 days 🔍
07/08/2022 +2107 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: FEDORA-2016-7e12ae5359
Researcher: John Haxby
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-0617 (🔍)
SecurityTracker: 1034968
Vulnerability Center: 56574 - Linux Kernel Local Code Execution due to Memory Corruption, Medium
SecurityFocus: 83112 - Linux Kernel 'hugetlb_vmtruncate_list()' Function Local Memory Corruption Vulnerability

See also: 🔍

Entryinfo

Created: 02/15/2016 01:13 PM
Updated: 07/08/2022 07:59 AM
Changes: 02/15/2016 01:13 PM (79), 08/22/2018 09:49 AM (13), 07/08/2022 07:59 AM (3)
Complete: 🔍

Discussion

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