Linux Kernel up to 2.6.15.5 ELF File denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 2.6.15.5. This vulnerability affects unknown code of the component ELF File Handler. This manipulation causes denial of service. This vulnerability is handled as CVE-2006-0457. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115389 (Linux Kernel Unspecified Socket Buffer Handling Remote Denial of Service Vulnerability).

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), Tenable (22276), SecurityFocus (BID 17084†), OSVDB (23894†) and Secunia (SA19083†). Entries connected to this vulnerability are available at VDB-2070, VDB-27880, VDB-30335 and VDB-30129. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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

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

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Qualys ID: 🔍
Qualys Name: 🔍

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 🔍
06/21/2025 +6870 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: kernel.org
Researcher: David Howells
Organization: Kernel Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-0457 (🔍)
GCVE (CVE): GCVE-0-2006-0457
GCVE (VulDB): GCVE-100-2071

OVAL: 🔍

X-Force: 25354
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
Vulnerability Center: 10856 - Linux Kernel Local DoS via Race Condition in add_key, request_key \x26 keyctl, Medium

See also: 🔍

Entryinfo

Created: 03/07/2006 10:02
Updated: 06/21/2025 22:17
Changes: 03/07/2006 10:02 (89), 06/16/2019 06:25 (2), 06/21/2025 22:17 (20)
Complete: 🔍
Cache ID: 216:291:103

Be aware that VulDB is the high quality source for vulnerability data.

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