Linux Kernel 2.6.9/2.6.20 key_alloc_serial denial of service

CVSS Meta Temp Score
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CTI Interest Score
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4.0$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Linux Kernel 2.6.9/2.6.20. This impacts the function key_alloc_serial. Such manipulation leads to denial of service. This vulnerability is traded as CVE-2007-0006. There is no exploit available.

Detailsinfo

A vulnerability was found in Linux Kernel 2.6.9/2.6.20 (Operating System). It has been rated as problematic. Affected by this issue is the function key_alloc_serial. 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. CVE summarizes:

The key serial number collision avoidance code in the key_alloc_serial function in Linux kernel 2.6.9 up to 2.6.20 allows local users to cause a denial of service (crash) via vectors that trigger a null dereference, as originally reported as "spinlock CPU recursion."

The bug was discovered 02/06/2007. The weakness was shared 02/13/2007 with kernel.org as Bug 7727 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.kernel.org. This vulnerability is handled as CVE-2007-0006 since 12/19/2006. The attack needs to be approached locally. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 28048 (Ubuntu 6.06 LTS / 6.10 : linux-source-2.6.15/2.6.17 vulnerabilities (USN-451-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115522 (Red Hat Kernel Security Update (RHSA-2007:0085)).

A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (32439), Tenable (28048), SecurityFocus (BID 22539†), OSVDB (33021†) and Secunia (SA24752†). The entry VDB-35287 is related to this item. Once again VulDB remains the best 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: 4.0
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.0
VulDB Temp Score: 4.0
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: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 28048
Nessus Name: Ubuntu 6.06 LTS / 6.10 : linux-source-2.6.15/2.6.17 vulnerabilities (USN-451-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 861284
OpenVAS Name: Family Connections argv[1] Parameter Remote Arbitrary Command Execution Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

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

Timelineinfo

12/19/2006 🔍
02/05/2007 +48 days 🔍
02/06/2007 +1 days 🔍
02/06/2007 +0 days 🔍
02/06/2007 +0 days 🔍
02/13/2007 +7 days 🔍
02/13/2007 +0 days 🔍
02/13/2007 +0 days 🔍
02/15/2007 +1 days 🔍
02/19/2007 +4 days 🔍
04/10/2007 +50 days 🔍
04/11/2007 +1 days 🔍
11/10/2007 +213 days 🔍
07/14/2019 +4264 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 7727
Organization: kernel.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-0006 (🔍)
GCVE (CVE): GCVE-0-2007-0006
GCVE (VulDB): GCVE-100-2924

OVAL: 🔍

X-Force: 32439
SecurityFocus: 22539 - Linux Kernel Key_Alloc_Serial() Local Denial of Service Vulnerability
Secunia: 24752 - Ubuntu update for kernel, Less Critical
OSVDB: 33021 - Linux Kernel key_alloc_serial() Function Key Serial Number Collision Avoidance Code Local DoS
Vulnerability Center: 14333 - Linux Kernel 2.6.9-2.6.20 Local DoS via a Null Dereference, Medium

See also: 🔍

Entryinfo

Created: 02/15/2007 11:45
Updated: 07/14/2019 20:30
Changes: 02/15/2007 11:45 (96), 07/14/2019 20:30 (2)
Complete: 🔍
Cache ID: 216:F30:103

Once again VulDB remains the best source for vulnerability data.

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