Linux Kernel 2.6.23 kill_something_info access control

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

A vulnerability has been found in Linux Kernel 2.6.23 (Operating System) and classified as problematic. This vulnerability affects the function kill_something_info. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The kill_something_info function in kernel/signal.c in the Linux kernel before 2.6.28 does not consider PID namespaces when processing signals directed to PID -1, which allows local users to bypass the intended namespace isolation, and send arbitrary signals to all processes in all namespaces, via a kill command.

The bug was discovered 04/20/2009. The weakness was presented 04/22/2009 by Daniel Hokka Zakrisson as Bug 496031 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability was named CVE-2009-1338 since 04/17/2009. The exploitation appears to be easy. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 561 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 38668 (Debian DSA-1787-1 : linux-2.6.24 - denial of service/privilege escalation/information leak), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (50386) and Tenable (38668). See 45624, 45355, 47924 and 47913 for similar entries.

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
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CVSSv2info

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Exploitinginfo

Class: Access control
CWE: CWE-264
ATT&CK: T1068

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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Nessus ID: 38668
Nessus Name: Debian DSA-1787-1 : linux-2.6.24 - denial of service/privilege escalation/information leak
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OpenVAS ID: 63939
OpenVAS Name: Debian Security Advisory DSA 1787-1 (linux-2.6.24)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
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Timelineinfo

10/09/2007 🔍
07/17/2008 +282 days 🔍
07/17/2008 +0 days 🔍
04/17/2009 +274 days 🔍
04/20/2009 +3 days 🔍
04/22/2009 +2 days 🔍
04/22/2009 +0 days 🔍
05/02/2009 +10 days 🔍
05/04/2009 +2 days 🔍
05/04/2009 +0 days 🔍
05/12/2009 +8 days 🔍
03/17/2015 +2135 days 🔍
09/03/2019 +1631 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 496031
Researcher: Daniel Hokka Zakrisson
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-1338 (🔍)
OVAL: 🔍

X-Force: 50386
Vulnerability Center: 21990 - Linux Kernel < 2.6.28 PID Namespaces Local DoS Vulnerability, Medium
SecurityFocus: 34558 - Linux Kernel 'kill_something_info()' Local Denial of Service Vulnerability
Secunia: 34981 - Debian update for linux-2.6.24, Less Critical
OSVDB: 56430 - CVE-2009-1338 - Linux - Kernel - Security Bypass Issue

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Entryinfo

Created: 03/17/2015 23:38
Updated: 09/03/2019 11:45
Changes: 03/17/2015 23:38 (83), 09/03/2019 11:45 (5)
Complete: 🔍

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