Opendarwin Darwin kernel 8.8.1 syscall denial of service

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Opendarwin Darwin kernel 8.8.1 and classified as problematic. This vulnerability affects the function syscall. Such manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2006-5836. Moreover, an exploit is present. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Opendarwin Darwin kernel 8.8.1. Affected by this issue is the function syscall. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The fpathconf syscall function in bsd/kern/kern_descrip.c in the Darwin kernel (XNU) 8.8.1 in Apple Mac OS X allows local users to cause a denial of service (kernel panic) and possibly execute arbitrary code via a file descriptor with an unrecognized file type.

The bug was discovered 11/09/2006. The weakness was disclosed 11/09/2006 by Ilja van Sprundel (Website). The advisory is shared for download at us-cert.gov. This vulnerability is handled as CVE-2006-5836 since 11/09/2006. The exploitation is known to be easy. The attack needs to be approached locally. No form of authentication is required for exploitation. Technical details as well as a public exploit are known.

After 2 days, there has been an exploit disclosed. The exploit is available at projects.info-pull.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 24811 (Mac OS X < 10.4.9 Multiple Vulnerabilities (Security Update 2007-003)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115457 (Apple Mac OS X FPathConf System Call Local Denial of Service Vulnerability).

Upgrading eliminates this vulnerability. A possible mitigation has been published 5 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (30152), Exploit-DB (28948), Tenable (24811), SecurityFocus (BID 20982†) and OSVDB (30216†). The entries VDB-2824, VDB-2832, VDB-2833 and VDB-2834 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.4

VulDB Base Score: 9.3
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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

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Price Prediction: 🔍
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Nessus ID: 24811
Nessus Name: Mac OS X < 10.4.9 Multiple Vulnerabilities (Security Update 2007-003)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Timelineinfo

11/09/2006 🔍
11/09/2006 +0 days 🔍
11/09/2006 +0 days 🔍
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11/09/2006 +0 days 🔍
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11/10/2006 +0 days 🔍
11/10/2006 +0 days 🔍
11/11/2006 +0 days 🔍
11/20/2006 +9 days 🔍
03/13/2007 +113 days 🔍
03/13/2007 +0 days 🔍
03/13/2007 +0 days 🔍
03/12/2015 +2921 days 🔍
04/27/2026 +4064 days 🔍

Sourcesinfo

Advisory: us-cert.gov
Researcher: Ilja van Sprundel
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-5836 (🔍)
GCVE (CVE): GCVE-0-2006-5836
GCVE (VulDB): GCVE-100-33212
X-Force: 30152
SecurityFocus: 20982 - Apple Mac OS X FPathConf System Call Local Denial of Service Vulnerability
Secunia: 22808 - Mac OS X "fpathconf()" Denial of Service, Not Critical
OSVDB: 30216 - Apple Mac OS X fpathconf() Function Local DoS
SecurityTracker: 1017751
Vulnerability Center: 13113 - Apple Mac OS X Darwin Kernel Unrecognized File Type Vulnerability, High
Vupen: ADV-2006-4448

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/12/2015 22:21
Updated: 04/27/2026 08:51
Changes: 03/12/2015 22:21 (85), 07/10/2019 20:39 (5), 05/28/2025 05:42 (18), 04/27/2026 08:51 (1)
Complete: 🔍
Cache ID: 216::103

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