Linux Kernel 2.6.16.9 tcf_fill_node information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Linux Kernel 2.6.16.9. Impacted is the function tcf_fill_node. The manipulation results in information disclosure. This vulnerability is cataloged as CVE-2009-3612. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel 2.6.16.9 (Operating System). Affected is the function tcf_fill_node. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. CVE summarizes:

The tcf_fill_node function in net/sched/cls_api.c in the netlink subsystem in the Linux kernel 2.6.x before 2.6.32-rc5, and 2.4.37.6 and earlier, does not initialize a certain tcm__pad2 structure member, which might allow local users to obtain sensitive information from kernel memory via unspecified vectors. NOTE: this issue exists because of an incomplete fix for CVE-2005-4881.

The issue has been introduced in 03/20/2006. The weakness was shared 10/19/2009 as Bug 528868 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2009-3612. The exploitability is told to be easy. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1592.

A public exploit has been developed in ANSI C. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1309 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 67972 (Oracle Linux 5 : kernel (ELSA-2009-1670)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165664 (SUSE Enterprise Linux Security Update Linux Kernel (SUSE-SA:2009:061)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (67972), SecurityFocus (BID 36723†) and Vulnerability Center (SBV-23938†). The entries VDB-50912, VDB-50859, VDB-50857 and VDB-50819 are 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: 6.2
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.2
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67972
Nessus Name: Oracle Linux 5 : kernel (ELSA-2009-1670)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 66207
OpenVAS Name: Debian Security Advisory DSA 1927-1 (linux-2.6)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/20/2006 🔍
10/08/2009 +1298 days 🔍
10/09/2009 +0 days 🔍
10/19/2009 +10 days 🔍
10/19/2009 +0 days 🔍
10/19/2009 +0 days 🔍
11/09/2009 +21 days 🔍
07/12/2013 +1341 days 🔍
03/18/2015 +614 days 🔍
08/24/2021 +2351 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 528868
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-3612 (🔍)
GCVE (CVE): GCVE-0-2009-3612
GCVE (VulDB): GCVE-100-50484

OVAL: 🔍

SecurityFocus: 36723 - Linux Kernel 'unix_stream_connect()' Local Denial of Service Vulnerability
Vulnerability Center: 23938 - Linux Kernel Netlink Subsystem Vulnerability Allows Local Attackers to Obtain Sensitive Information, Low

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 08/24/2021 07:05
Changes: 03/18/2015 15:15 (67), 02/16/2017 10:11 (11), 08/24/2021 06:57 (4), 08/24/2021 07:05 (1)
Complete: 🔍
Cache ID: 216::103

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