ZDI-08-067: Apple CUPS 1.3.7 (HP-GL/2 filter) Remote Code Execution 
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-08-067
October 9, 2008

-- CVE ID:
CVE-2008-3641

-- Affected Vendors:
Apple

-- Affected Products:
Apple OS X

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 6325. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Apple CUPS. Authentication is not required
to exploit this vulnerability.

The specific flaw exists in the Hewlett-Packard Graphics Language
filter. Inadequate bounds checking on the pen width and pen color
opcodes result in an arbitrary memory overwrite allowing for the
execution of arbitrary code as the "hgltops" process uid.

-- Vendor Response:
Apple has issued an update to correct this vulnerability. More
details can be found at:

http://support.apple.com/kb/HT3216

-- Disclosure Timeline:
2008-08-19 - Vulnerability reported to vendor
2008-10-09 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * regenrecht

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