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ZDI-08-015: Apple QuickTime Clipping Region Heap Overflow Vulnerability
From: zdi-disclosures () 3com com
Date: Thu, 3 Apr 2008 16:50:24 -0500

ZDI-08-015: Apple QuickTime Clipping Region Heap Overflow Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-08-015
April 3, 2008

-- CVE ID:
CVE-2008-1017

-- Affected Vendors:
Apple

-- Affected Products:
Apple Quicktime 7.4.1

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 5931. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- Vulnerability Details:
This vulnerability allows attackers to execute arbitrary code on
vulnerable installations of Apple QuickTime Player. User interaction is
required to exploit this vulnerability in that the target must visit a
malicious page or open a malicious file.

The specific flaw exists within the quicktime.qts library. The
vulnerability resides in the component's parsing of 'crgn' atoms. A lack
of proper sanity checks on the region size field can result in a heap
based buffer overflow leading to arbitrary code execution under the
context of the currently logged in user.

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

http://support.apple.com/kb/HT1241

-- Disclosure Timeline:
2008-02-07 - Vulnerability reported to vendor
2008-04-03 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Sanbin Li

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents 
a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is
used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
its intrusion prevention technology. Explicit details regarding the
specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

    http://www.zerodayinitiative.com/advisories/disclosure_policy/

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