Linux Kernel 2.6.9 dentry_open denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.8$0-$5k0.00

A vulnerability was found in Linux Kernel 2.6.9 (Operating System). It has been declared as problematic. Affected by this vulnerability is the function dentry_open. 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:

The mq_open system call in Linux kernel 2.6.9, in certain situations, can decrement a counter twice ("double decrement") as a result of multiple calls to the mntput function when the dentry_open function call fails, which allows local users to cause a denial of service (panic) via unspecified attack vectors.

The bug was discovered 09/23/2005. The weakness was released 12/31/2005 with Redhat (Website). It is possible to read the advisory at secunia.com. This vulnerability is known as CVE-2005-3356 since 10/27/2005. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 438 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 20791 (Ubuntu 4.10 / 5.04 / 5.10 : linux-source-2.6.8.1/-2.6.10/-2.6.12 vulnerabilities (USN-244-1)), 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 117768 (CentOS Security Update for Kernel (CESA-2006:0101)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (20791). Entries connected to this vulnerability are available at 1712, 1942, 1945 and 1943.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.0
VulDB Temp Score: 3.8
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CVSSv2info

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Exploitinginfo

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

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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Nessus ID: 20791
Nessus Name: Ubuntu 4.10 / 5.04 / 5.10 : linux-source-2.6.8.1/-2.6.10/-2.6.12 vulnerabilities (USN-244-1)
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 56469
OpenVAS Name: Debian Security Advisory DSA 1017-1 (kernel-source-2.6.8)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Timelineinfo

10/19/2004 🔍
09/23/2005 +339 days 🔍
10/27/2005 +34 days 🔍
12/31/2005 +65 days 🔍
12/31/2005 +0 days 🔍
12/31/2005 +0 days 🔍
01/17/2006 +17 days 🔍
01/17/2006 +0 days 🔍
01/18/2006 +1 days 🔍
01/21/2006 +3 days 🔍
02/23/2006 +33 days 🔍
03/12/2015 +3304 days 🔍
07/07/2021 +2309 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: secunia.com⛔
Organization: Redhat
Status: Not defined
Confirmation: 🔍

CVE: CVE-2005-3356 (🔍)
OVAL: 🔍

X-Force: 25302
Vulnerability Center: 10451 - Linux Kernel 2.6.9 DoS via Multiple Calls to the mntput Function, Medium
SecurityFocus: 16283 - Linux Kernel mq_open System Call Unspecified Denial of Service Vulnerability
Secunia: 18510 - Red Hat update for kernel, Less Critical
OSVDB: 22822 - CVE-2005-3356 - Linux - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 03/12/2015 11:11
Updated: 07/07/2021 08:55
Changes: 03/12/2015 11:11 (79), 06/14/2019 16:08 (9), 07/07/2021 08:55 (3)
Complete: 🔍

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