Linux Kernel up to 2.6.19.2 ext2 File System resource management

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Linux Kernel up to 2.6.19.2. Affected by this issue is some unknown functionality of the component ext2 File System. Such manipulation leads to resource management. This vulnerability is listed as CVE-2006-4814. In addition, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 2.6.19.2 (Operating System). Affected by this issue is an unknown function of the component ext2 File System. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The mincore function in the Linux kernel before 2.4.33.6 does not properly lock access to user space, which has unspecified impact and attack vectors, possibly related to a deadlock.

The bug was discovered 12/20/2006. The weakness was presented 01/11/2007 by LMH (Website). The advisory is shared for download at projects.info-pull.com. This vulnerability is handled as CVE-2006-4814 since 09/15/2006. The attack needs to approached within the local network. The successful exploitation requires a simple authentication. Technical details are unknown but an exploit is available.

The exploit is available at projects.info-pull.com. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 67678 (Oracle Linux 3 : kernel (ELSA-2008-0211)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux 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 kernel.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 2 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (42308), Tenable (67678), SecurityFocus (BID 21663†), OSVDB (31377†) and Secunia (SA23664†). See VDB-2551, VDB-2589, VDB-2647 and VDB-2661 for similar entries. 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: 5.5
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.5
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 67678
Nessus Name: Oracle Linux 3 : kernel (ELSA-2008-0211)
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: 🔍
Exposure Time: 🔍

Patch: kernel.org

Timelineinfo

09/15/2006 🔍
12/19/2006 +95 days 🔍
12/19/2006 +0 days 🔍
12/19/2006 +0 days 🔍
12/20/2006 +1 days 🔍
01/11/2007 +22 days 🔍
01/11/2007 +0 days 🔍
01/16/2007 +5 days 🔍
02/04/2007 +19 days 🔍
05/08/2008 +459 days 🔍
07/12/2013 +1891 days 🔍
07/14/2019 +2193 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: projects.info-pull.com
Researcher: LMH
Status: Not defined
Confirmation: 🔍

CVE: CVE-2006-4814 (🔍)
GCVE (CVE): GCVE-0-2006-4814
GCVE (VulDB): GCVE-100-2828

OVAL: 🔍

X-Force: 42308
SecurityFocus: 21663 - Linux Kernel MinCore User Space Access Locking Local Denial of Service Vulnerability
Secunia: 23664 - Linux Kernel Local Denial of Service Vulnerabilities, Not Critical
OSVDB: 31377 - CVE-2006-4814 - Linux - Unspecified Issue
Vulnerability Center: 14196 - Linux Kernel before 2.4.33.6 Mincore Function Does Not Properly Lock Access to User Space, Medium
Vupen: ADV-2006-5082

See also: 🔍

Entryinfo

Created: 01/16/2007 14:29
Updated: 07/14/2019 11:28
Changes: 01/16/2007 14:29 (90), 07/14/2019 11:28 (8)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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