Linux Kernel 2.6.20.1 listxattr bad_inode_ops 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 was found in Linux Kernel 2.6.20.1. It has been rated as problematic. This impacts an unknown function of the component listxattr. The manipulation of the argument bad_inode_ops leads to denial of service. This vulnerability is documented as CVE-2006-5753. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel 2.6.20.1 (Operating System). This issue affects an unknown function of the component listxattr. The manipulation of the argument bad_inode_ops 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 summary by CVE is:

Unspecified vulnerability in the listxattr system call in Linux kernel, when a "bad inode" is present, allows local users to cause a denial of service (data corruption) and possibly gain privileges via unknown vectors.

The bug was discovered 01/03/2007. The weakness was released 01/31/2007 by Eric Sandeen with Red Hat (Website). It is possible to read the advisory at lkml.org. The identification of this vulnerability is CVE-2006-5753 since 11/06/2006. The attack needs to approached within the local network. No form of authentication is needed for a successful exploitation. 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 27 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 24766 (Fedora Core 5 : kernel-2.6.19-1.2288.2.1.fc5 (2007-277)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115509 (Red Hat Kernel Security Update (RHSA-2007:0014)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at ftp.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version. 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 (32008), Tenable (24766), SecurityFocus (BID 22316†), OSVDB (33020†) and Secunia (SA24429†). Entries connected to this vulnerability are available at VDB-2551, VDB-2589, VDB-2647 and VDB-2661. Statistical analysis made it clear that VulDB provides the best quality 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: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 24766
Nessus Name: Fedora Core 5 : kernel-2.6.19-1.2288.2.1.fc5 (2007-277)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 58357
OpenVAS Name: Debian Security Advisory DSA 1304-1 (kernel-source-2.6.8)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: ftp.kernel.org

Timelineinfo

11/06/2006 🔍
01/03/2007 +58 days 🔍
01/30/2007 +27 days 🔍
01/30/2007 +0 days 🔍
01/30/2007 +0 days 🔍
01/31/2007 +1 days 🔍
01/31/2007 +0 days 🔍
02/02/2007 +1 days 🔍
02/04/2007 +2 days 🔍
02/05/2007 +1 days 🔍
03/02/2007 +25 days 🔍
03/06/2007 +4 days 🔍
03/07/2007 +1 days 🔍
07/14/2019 +4512 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: lkml.org
Researcher: Eric Sandeen
Organization: Red Hat
Status: Not defined
Confirmation: 🔍

CVE: CVE-2006-5753 (🔍)
GCVE (CVE): GCVE-0-2006-5753
GCVE (VulDB): GCVE-100-2891

OVAL: 🔍

X-Force: 32008
SecurityFocus: 22316 - Linux Kernel ListXATTR Local Denial of Service Vulnerability
Secunia: 24429 - rPath update for kernel, Less Critical
OSVDB: 33020 - Linux Kernel listxattr System Call Unspecified Memory Corruption
Vulnerability Center: 14199 - Linux Kernel listxattr System Call Vulnerability Allows Local DoS and Possibly Privilege Escalation, High

See also: 🔍

Entryinfo

Created: 02/02/2007 15:35
Updated: 07/14/2019 11:44
Changes: 02/02/2007 15:35 (99), 07/14/2019 11:44 (3)
Complete: 🔍
Cache ID: 216:63C:103

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