Linux Kernel 2.6.19 fs/exec.c do_coredump resource management

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.8$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel 2.6.19 and classified as problematic. Affected by this vulnerability is the function do_coredump of the file fs/exec.c. The manipulation leads to resource management. This vulnerability is known as CVE-2006-6304. There is no exploit available. It is recommended to upgrade the affected component. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel 2.6.19 (Operating System). Affected is the function do_coredump of the file fs/exec.c. The manipulation with an unknown input leads to a resource management vulnerability. CWE is classifying the issue as CWE-399. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

The do_coredump function in fs/exec.c in the Linux kernel 2.6.19 sets the flag variable to O_EXCL but does not use it, which allows context-dependent attackers to modify arbitrary files via a rewrite attack during a core dump.

The issue has been introduced in 11/29/2006. The weakness was released 12/18/2006 by Alexey Dobriyan (Website). The advisory is available at kernel.org. This vulnerability is traded as CVE-2006-6304 since 12/05/2006. The attack can only be done within the local network. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 15 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 67988 (Oracle Linux 5 : kernel (ELSA-2010-0046)), 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 118072 (VMware ESX Service Console Third Party Updates (VMSA-2010-0009)).

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 4 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (30926), Tenable (67988), SecurityFocus (BID 21591†), OSVDB (31466†) and Secunia (SA23349†). Entries connected to this vulnerability are available at VDB-40214, VDB-50485 and VDB-50147. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.6
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

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

Local: No
Remote: Partially

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 67988
Nessus Name: Oracle Linux 5 : kernel (ELSA-2010-0046)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 880643
OpenVAS Name: CentOS Update for kernel CESA-2010:0046 centos5 i386
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: kernel.org

Timelineinfo

11/29/2006 🔍
12/02/2006 +3 days 🔍
12/05/2006 +3 days 🔍
12/14/2006 +9 days 🔍
12/14/2006 +0 days 🔍
12/18/2006 +4 days 🔍
12/18/2006 +0 days 🔍
12/20/2006 +1 days 🔍
02/02/2010 +1140 days 🔍
05/27/2010 +114 days 🔍
07/12/2013 +1142 days 🔍
03/13/2021 +2801 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: kernel.org
Researcher: Alexey Dobriyan
Status: Not defined
Confirmation: 🔍

CVE: CVE-2006-6304 (🔍)
GCVE (CVE): GCVE-0-2006-6304
GCVE (VulDB): GCVE-100-2766

OVAL: 🔍
IAVM: 🔍

X-Force: 30926
SecurityFocus: 21591 - Linux Kernel Do_Coredump Security Bypass Vulnerability
Secunia: 23349 - Linux Kernel "do_coredump()" File Overwrite Vulnerability, Less Critical
OSVDB: 31466 - Linux Kernel fs/exec.c do_coredump() Function File Overwrite
Vulnerability Center: 24734 - Linux Kernel Prior to 2.6.19 Do_Coredump Local File Manipulation Vulnerability, Medium
Vupen: ADV-2006-5002

See also: 🔍

Entryinfo

Created: 12/20/2006 10:34 AM
Updated: 03/13/2021 05:26 PM
Changes: 12/20/2006 10:34 AM (93), 02/20/2017 10:20 AM (8), 03/13/2021 05:26 PM (3)
Complete: 🔍
Cache ID: 18:64E:40

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!