Linux Kernel 2.6.x futex.c denial of service

CVSS Meta Temp Score
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CTI Interest Score
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2.8$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Linux Kernel 2.6.x. This affects an unknown function of the file futex.c. This manipulation causes denial of service. This vulnerability is tracked as CVE-2005-0937. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel 2.6.x (Operating System). Affected by this vulnerability is some unknown functionality of the file futex.c. 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:

some futex functions in futex.c for linux kernel 2.6.x perform get_user calls while holding the mmap_sem semaphore which could allow local users to cause a deadlock condition in do_page_fault by triggering get_user faults while another thread is executing mmap or other functions.

The bug was discovered 06/08/2006. The weakness was disclosed 02/22/2005 (Website). The advisory is shared at lkml.org. This vulnerability is known as CVE-2005-0937 since 03/30/2005. The exploitation appears to be difficult. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 21937 (CentOS 4 : kernel (CESA-2005:420)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115057 (Multiple Linux Kernel IOCTL Handlers Local Memory Corruption Vulnerabilities).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (19916), Tenable (21937), SecurityFocus (BID 12959†), OSVDB (15188†) and Vulnerability Center (SBV-17252†). The entries VDB-1479, VDB-1478, VDB-24340 and VDB-26459 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.9
VulDB Meta Temp Score: 2.8

VulDB Base Score: 2.9
VulDB Temp Score: 2.8
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: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 21937
Nessus Name: CentOS 4 : kernel (CESA-2005:420)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

02/22/2005 🔍
02/22/2005 +0 days 🔍
02/22/2005 +0 days 🔍
03/30/2005 +36 days 🔍
03/31/2005 +1 days 🔍
06/09/2005 +70 days 🔍
06/08/2006 +364 days 🔍
07/05/2006 +27 days 🔍
01/02/2008 +546 days 🔍
03/10/2015 +2624 days 🔍
08/02/2019 +1606 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: lkml.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2005-0937 (🔍)
GCVE (CVE): GCVE-0-2005-0937
GCVE (VulDB): GCVE-100-23977

OVAL: 🔍

X-Force: 19916
SecurityFocus: 12959 - Linux Kernel Futex Local Deadlock Denial Of Service Vulnerability
OSVDB: 15188 - Linux Kernel atomic futex operation denial of service
Vulnerability Center: 17252 - Linux kernel 2.6.* Futex Functions Allow Local Denial of Service, Low

See also: 🔍

Entryinfo

Created: 03/10/2015 15:27
Updated: 08/02/2019 16:25
Changes: 03/10/2015 15:27 (68), 08/02/2019 16:25 (9)
Complete: 🔍
Cache ID: 216:731:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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