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Mac OS X Mach-O Universal Binary Memory Corruption
Secunia Advisory: SA23088
Release Date: 2006-11-27
Last Update: 2007-03-14
Popularity: 11,769 views

Critical:
Less critical
Impact: DoS
System access
Where: Local system
Solution Status: Vendor Patch

OS:Apple Macintosh OS X

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CVE reference:CVE-2006-6129
CVE-2006-6126


Description:
LMH has reported a vulnerability in Mac OS X, which can be exploited by malicious, local users to cause a DoS (Denial of Service) or potentially gain escalated privileges.

The vulnerability is caused due to an error in the fatfile_getarch2() function. This can be exploited to cause an integer overflow and may potentially allow execution of arbitrary code with kernel privileges via a specially crafted Mach-O Universal binary.

The vulnerability is reported in a fully patched Mac OS X (2006-11-26). Other versions may also be affected.

Solution:
Update to Mac OS X 10.4.9 or install Security Update 2007-003.
http://docs.info.apple.com/article.html?artnum=305214

Provided and/or discovered by:
LMH

Changelog:
2006-11-28: Added CVE reference.
2007-03-14: Updated "Solution" section.

Original Advisory:
http://projects.info-pull.com/mokb/MOKB-26-11-2006.html


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