Apple Mac OS X fatfile_getarch2() integer overflow

macos-fatfile-getarch2-overflow (30547) The risk level is classified as HighHigh Risk

Description:

Apple Mac OS X is vulnerable to an integer overflow in the fatfile_getarch2() function. By executing a specially-crafted Mach-O Universal binary, a local attacker could corrupt memory and possibly execute arbitrary code on the system or cause the system to crash.

*CVSS:

Base Score: 7
  Access Vector: Local
  Access Complexity: Low
  Authentication: Not Required
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 5.5
  Exploitability: Proof-Of-Concept
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Privileges

Remedy:

Upgrade to the latest version of Mac OS X (10.4.9 or later) or apply Apple Security Update 2007-003. See References.

References:

  • Apple Web site: Apple - Support - Downloads.
  • Mac OS X 10.4.9 and Security Update 2007-003: About the security content of Mac OS X 10.4.9 and Security Update 2007-003.
  • MOKB-26-11-2006: Mac OS X Universal Binary Loading Memory Corruption.
  • BID-21291: Apple Mac OS X Mach-O Binary Loading Integer Overflow Vulnerability
  • CVE-2006-6129: Integer overflow in the fatfile_getarch2 in Apple Mac OS X allows local users to cause a denial of service and possibly execute arbitrary code via a crafted Mach-O Universal program that triggers memory corruption.
  • OSVDB ID: 30706: Mac OS X Mach-O Universal Binary fatfile_getarch2() Function Integer Overflow
  • SA23088: Mac OS X Mach-O Universal Binary Memory Corruption
  • SA24479: Mac OS X Security Update Fixes Multiple Vulnerabilities
  • SECTRACK ID: 1017751: Mac OS X Lets Remote Users Execute Arbitrary Code and Local Users Obtain Elevated Privileges and Deny Service
  • US-CERT VU#346656: Apple Mac OS X fails to properly handle corrupted Universal Mach-O Binaries
  • VUPEN/ADV-2006-4714: Apple Mac OS X Mach-O Universal Binary Local Privilege Escalation Vulnerabilities
  • VUPEN/ADV-2007-0930: Apple Mac OS X Multiple Remote Code Execution and Denial of Service Vulnerabilities

Platforms Affected:

  • Apple Mac OS X 10.3.9
  • Apple Mac OS X 10.4
  • Apple Mac OS X 10.4.1
  • Apple Mac OS X 10.4.10
  • Apple Mac OS X 10.4.11
  • Apple Mac OS X 10.4.2
  • Apple Mac OS X 10.4.3
  • Apple Mac OS X 10.4.4
  • Apple Mac OS X 10.4.5
  • Apple Mac OS X 10.4.6
  • Apple Mac OS X 10.4.7
  • Apple Mac OS X 10.4.8
  • Apple Mac OS X Server 10.3.9
  • Apple Mac OS X Server 10.4
  • Apple Mac OS X Server 10.4.1
  • Apple Mac OS X Server 10.4.10
  • Apple Mac OS X Server 10.4.11
  • Apple Mac OS X Server 10.4.2
  • Apple Mac OS X Server 10.4.3
  • Apple Mac OS X Server 10.4.4
  • Apple Mac OS X Server 10.4.5
  • Apple Mac OS X Server 10.4.6
  • Apple Mac OS X Server 10.4.7
  • Apple Mac OS X Server 10.4.8

Reported:

Nov 26, 2006

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email xforce@iss.net

Return to the main page

* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

About IBM Internet Security Systems

IBM Internet Security Systems is a trusted security advisor to thousands of the world's leading businesses and governments, helping to provide pre-emptive protection for networks, desktops and servers. The IBM Proventia? integrated security platform is designed to automatically protect against both known and unknown threats, helping to keep networks up and running and shield customers from online attacks before they impact business assets. IBM Internet Security Systems products and services are based on the proactive security intelligence of its X-Force? research and development team ? an unequivocal world authority in vulnerability and threat research. The IBM Internet Security Systems product line is also complemented by comprehensive Managed Security Services and Professional Security Services. For more information, visit the IBM Internet Security Systems Web site at www.iss.net or call 800-776-2362.