Apple Mac OS X com.apple.AppleDiskImageController denial of service

macosx-dmg-dos (30440) The risk level is classified as LowLow Risk

Description:

Apple Mac OS X is vulnerable to a denial of service, caused by improper handling of DMG files by the com.apple.AppleDiskImageController that could lead to memory corruption. A remote attacker could exploit this vulnerability to cause a denial of service, if the attacker could persuade the victim to load a specially-crafted DMG file.

Platforms Affected:

  • Apple, Mac OS X 10.3.9
  • Apple, Mac OS X 10.4.8
  • Apple, Mac OS X Server 10.3.9
  • Apple, Mac OS X Server 10.4.8

Remedy:

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

Consequences:

Denial of Service

References:

  • Alastair's Place Web site, dmg vulnerability debunked at http://alastairs-place.net/2006/11/dmg-vulnerability/.
  • Apple Mac OS X Web site, Apple - Mac OS X at http://www.apple.com/macosx/.
  • 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 at http://docs.info.apple.com/article.html?artnum=305214.
  • MOKB-20-11-2006 , Mac OS X Apple UDIF Disk Image Kernel Memory Corruption (1) at http://projects.info-pull.com/mokb/MOKB-20-11-2006.html.
  • BID-21201: Apple Mac OS X UDIF Disk Image Remote Denial Of Service Vulnerability
  • CVE-2006-6061: com.apple.AppleDiskImageController in Apple Mac OS X 10.4.8, and possibly other versions, allows remote attackers to execute arbitrary code via a malformed DMG image that triggers memory corruption. NOTE: the severity of this issue has been disputed by a third party, who states that the impact is limited to a denial of service (kernel panic) due to a vm_fault call with a non-aligned address.
  • FrSIRT/ADV-2006-4629: Apple Mac OS X com.apple.AppleDiskImageController Denial of Service Vulnerability
  • FrSIRT/ADV-2007-0930: Apple Mac OS X Multiple Remote Code Execution and Denial of Service Vulnerabilities
  • OSVDB ID: 30509: Mac OS X com.apple.AppleDiskImageController DMG Image Handling Memory Corruption
  • SA23012: Apple Mac OS X UDIF Denial of Service
  • SA24479: Mac OS X Security Update Fixes Multiple Vulnerabilities
  • SECTRACK ID: 1017260: Mac OS X DMG Image Validation Error May Let Remote Users Execute Arbitrary Code
  • SECTRACK ID: 1017751: Mac OS X Lets Remote Users Execute Arbitrary Code and Local Users Obtain Elevated Privileges and Deny Service
  • US-CERT VU#367424: Apple Mac OS X fails to properly handle corrupted DMG image structures

Reported:

Nov 20, 2006

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