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Category:   OS (UNIX)  >   Mac OS X Vendors:   Apple Computer
Mac OS X Launch Services File Download Symlink Validation Bug Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1020393
SecurityTracker URL:  http://securitytracker.com/id/1020393
CVE Reference:   CVE-2008-2311   (Links to External Site)
Date:  Jun 30 2008
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 10.4.x
Description:   A vulnerability was reported in Mac OS X Launch Services. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted HTML that, when loaded by the target user, will trigger a race condition in validating symbolic links and open a file on the target user's system. This may cause arbitrary code to be executed on the target user's system. The code will run with the privileges of the target user.

The system is affected if the "Open 'safe' files" preference is enabled in Safari.

Systems running Mac OS X 10.5 or later are not affected.

Impact:   A remote user can create a HTML that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a fix (Security Update 2008-004 and Mac OS X 10.5.4), which can be downloaded and installed via Software Update preferences, or from Apple Downloads at:

http://www.apple.com/support/downloads/

The vendor's advisory is available at:

http://support.apple.com/kb/HT2163

Vendor URL:  support.apple.com/kb/HT2163 (Links to External Site)
Cause:   Access control error, State error
Underlying OS:  

Message History:   None.


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