Linux Kernel up to 3.8-rc3 TUN/TAP Devices CONFIG_TUN ioctl(TUNSETQUEUE) 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.
5.9	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 3.8-rc3. It has been classified as problematic. Affected by this vulnerability is the function ioctl(TUNSETQUEUE) in the library CONFIG_TUN of the component TUN/TAP Devices. The manipulation leads to denial of service. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 3.8-rc3 (Operating System). It has been rated as problematic. This issue affects the function ioctl(TUNSETQUEUE) in the library CONFIG_TUN of the component TUN/TAP Devices. 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 availability.

The weakness was disclosed 01/10/2013 by Prasad J Pandit with Red Hat Security Response Team as not defined mailinglist post (oss-sec). The advisory is shared at seclists.org. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

Upgrading to version 3.8-rc4 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at OSVDB (93241†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

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: 6.2
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.2
VulDB Temp Score: 5.9
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

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined
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: Upgrade
Status: 🔍

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

Upgrade: Kernel 3.8-rc4
Patch: git.kernel.org

Timelineinfo

01/10/2013 🔍
01/10/2013 +0 days 🔍
05/14/2013 +124 days 🔍
03/20/2019 +2136 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: seclists.org
Researcher: Prasad J Pandit
Organization: Red Hat Security Response Team
Status: Not defined

GCVE (VulDB): GCVE-100-8657
OSVDB: 93241

Entryinfo

Created: 05/14/2013 16:09
Updated: 03/20/2019 20:09
Changes: 05/14/2013 16:09 (46), 03/20/2019 20:09 (2)
Complete: 🔍
Committer:
Cache ID: 216:B90:103

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