Technical Description

Multiple vulnerabilities have been identified in Apple Mac OS X, which could be exploited by remote or local attackers to disclose sensitive information, bypass security restrictions, cause a denial of service or compromise an affected system.

The first issue is caused by a stack buffer overflow error in CarbonCore when handling overly long filenames, which could be exploited to crash an affected application or execute arbitrary code.

The second vulnerability is caused by memory corruption errors in CoreGraphics when processing certain arguments, which could be exploited to crash an affected application (e.g .web browser) or execute arbitrary code.

The third issue is caused by an integer overflow error in CoreGraphics when processing malformed PDF files, which could be exploited to crash an affected application or execute arbitrary code.

The fourth weakness is caused by a resource consumption in the Data Detectors Engine when handling textual content, which could be exploited to cause a denial of service.

The fifth issue is caused due to insecure permissions being set on "/usr/bin/emacs" by the "Repair Permissions" tool in Disk Utility, which could allow a local user to use emacs to run commands with system privileges.

The sixth vulnerability is caused by memory corruption errors in QuickLook when handling specially crafted MS Office files, which could be exploited by attackers to execute arbitrary code by tricking a user into downloading a malicious Office file.

Other vulnerabilities affecting Scripting Architecture, BIND, OpenLDAP, OpenSSL, PHP and rsync have been fixed. For additional information, see : VUPEN/ADV-2007-3325 - VUPEN/ADV-2007-4057 - VUPEN/ADV-2008-0570 - VUPEN/ADV-2008-1412 - VUPEN/ADV-2008-1905 - VUPEN/ADV-2008-1978 - VUPEN/ADV-2008-2023

Affected Products

Apple Mac OS X version 10.4.11 and prior
Apple Mac OS X version 10.5.4 and prior
Apple Mac OS X Server version 10.4.11 and prior
Apple Mac OS X Server version 10.5.4 and prior

Solution

Apple Security Update 2008-005 Server (PPC) :
http://www.apple.com/support/downloads/securityupdate2008005serverppc.html

Apple Security Update 2008-005 Server (Intel) :
http://www.apple.com/support/downloads/securityupdate2008005serverintel.html

Apple Security Update 2008-005 (PPC) :
http://www.apple.com/support/downloads/securityupdate2008005ppc.html

Apple Security Update 2008-005 (Intel) :
http://www.apple.com/support/downloads/securityupdate2008005intel.html

Apple Security Update 2008-005 (Leopard) :
http://www.apple.com/support/downloads/securityupdate2008005leopard.html

References

http://www.vupen.com/english/advisories/2008/2268
http://support.apple.com/kb/HT2647

Credits

Vulnerabilities reported by Charles Srstka, Dan Kaminsky (IOActive), Thomas Raffetseder (International Secure Systems Lab), Sergio shadown Alvarez (n.runs AG), Michal Zalewski (Google), Pariente Kobi, iDefense Labs, Pariente Kobi, Anton Rang and Brian Timares.

ChangeLog

2008-08-01 : Initial release

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