Linux Kernel 2.6.23 keyctl_join_session_keyring resource management

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 has been found in Linux Kernel 2.6.23. The affected element is the function keyctl_join_session_keyring. Performing a manipulation results in resource management. This vulnerability is known as CVE-2009-0031. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel 2.6.23 (Operating System). This affects the function keyctl_join_session_keyring. 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 availability. The summary by CVE is:

Memory leak in the keyctl_join_session_keyring function (security/keys/keyctl.c) in Linux kernel 2.6.29-rc2 and earlier allows local users to cause a denial of service (kernel memory consumption) via unknown vectors related to a "missing kfree."

The bug was discovered 01/18/2009. The weakness was published 01/20/2009 (Website). It is possible to read the advisory at ubuntu.com. This vulnerability is uniquely identified as CVE-2009-0031 since 12/15/2008. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for 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 468 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 43730 (CentOS 4 : kernel (CESA-2009:0331)), 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 155965 (Oracle Enterprise Linux Update for Kernel (ELSA-2009-0331)).

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 (48083), Tenable (43730), SecurityFocus (BID 33339†), OSVDB (51501†) and Secunia (SA33858†). Similar entries are available at VDB-46587, VDB-46153 and VDB-45623. Be aware that VulDB is the high quality 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: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / 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: 43730
Nessus Name: CentOS 4 : kernel (CESA-2009:0331)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 63681
OpenVAS Name: Debian Security Advisory DSA 1749-1 (linux-2.6)
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: 🔍

Timelineinfo

10/09/2007 🔍
12/15/2008 +433 days 🔍
01/18/2009 +34 days 🔍
01/18/2009 +0 days 🔍
01/18/2009 +0 days 🔍
01/19/2009 +1 days 🔍
01/20/2009 +0 days 🔍
01/20/2009 +0 days 🔍
02/17/2009 +28 days 🔍
04/20/2009 +62 days 🔍
01/06/2010 +261 days 🔍
03/17/2015 +1896 days 🔍
08/27/2019 +1624 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: ubuntu.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-0031 (🔍)
GCVE (CVE): GCVE-0-2009-0031
GCVE (VulDB): GCVE-100-45975

OVAL: 🔍

X-Force: 48083
SecurityFocus: 33339 - Linux Kernel 'keyctl_join_session_keyring()' Denial of Service Vulnerability
Secunia: 33858
OSVDB: 51501 - Linux Kernel security/keys/keyctl.c keyctl_join_session_keyring Function Local DoS
Vulnerability Center: 20910 - Linux kernel <= 2.6.29-rc2 keyctl_join_session_keyring Function Local DoS Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/17/2015 16:11
Updated: 08/27/2019 12:19
Changes: 03/17/2015 16:11 (79), 08/27/2019 12:19 (6)
Complete: 🔍
Cache ID: 216:FC8:103

Be aware that VulDB is the high quality source for vulnerability data.

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