Linux Kernel up to 2.6.15.5 ELF File 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.
6.2$0-$5k0.00

A vulnerability classified as critical was found in Linux Kernel up to 2.6.15.5 (Operating System). Affected by this vulnerability is some unknown processing of the component ELF File Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

Race condition in the (1) add_key, (2) request_key, and (3) keyctl functions in Linux kernel 2.6.x allows local users to cause a denial of service (crash) or read sensitive kernel memory by modifying the length of a string argument between the time that the kernel calculates the length and when it copies the data into kernel memory.

The bug was discovered 03/13/2006. The weakness was released 03/02/2006 by David Howells with Kernel Team (Website). It is possible to read the advisory at kernel.org. This vulnerability is known as CVE-2006-0457 since 01/27/2006. Access to the local network is required for this attack to succeed. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 22276 (CentOS 4 : kernel (CESA-2006:0575)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at kernel.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 7 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (25354) and Tenable (22276). Entries connected to this vulnerability are available at 2070, 27880, 30335 and 30129.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

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

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 22276
Nessus Name: CentOS 4 : kernel (CESA-2006:0575)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: kernel.org

Timelineinfo

01/27/2006 🔍
03/02/2006 +34 days 🔍
03/02/2006 +0 days 🔍
03/07/2006 +5 days 🔍
03/13/2006 +6 days 🔍
03/13/2006 +0 days 🔍
03/13/2006 +0 days 🔍
03/13/2006 +0 days 🔍
03/13/2006 +0 days 🔍
03/29/2006 +15 days 🔍
08/23/2006 +147 days 🔍
08/30/2006 +7 days 🔍
06/16/2019 +4673 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: kernel.org
Researcher: David Howells
Organization: Kernel Team
Status: Not defined
Confirmation: 🔍

CVE: CVE-2006-0457 (🔍)
OVAL: 🔍

X-Force: 25354
Vulnerability Center: 10856 - Linux Kernel Local DoS via Race Condition in add_key, request_key \x26 keyctl, Medium
SecurityFocus: 17084 - Linux Kernel Security Key Functions Local Copy_To_User Race Vulnerability
Secunia: 19083 - Linux Kernel Local Denial of Service and Information Disclosure, Less Critical
OSVDB: 23894 - Linux Kernel Multiple Function String Length Modification Race Condition Local Information Disclosure

See also: 🔍

Entryinfo

Created: 03/07/2006 10:02
Updated: 06/16/2019 06:25
Changes: 03/07/2006 10:02 (89), 06/16/2019 06:25 (2)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!