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Zero Day Initiative Advisory 12-136

Zero Day Initiative Advisory 12-136
Posted Aug 17, 2012
Authored by Tipping Point | Site zerodayinitiative.com

Zero Day Initiative Advisory 12-136 - This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple's QuickTime player. User interaction is required to exploit this vulnerability in that the target must visit a malicious page. The specific flaw exists within how the application handles a malformed atom type when playing a movie encoded with uncompressed audio. When decoding the audio sample the application will use a 16-bit length for allocating a buffer, and a different one for initializing it. This can cause memory corruption which can lead to code execution under the context of the application.

tags | advisory, remote, arbitrary, code execution
systems | apple
advisories | CVE-2011-3220
MD5 | cde8f6cb86cda9f6333bb040755f9379

Zero Day Initiative Advisory 12-136

Change Mirror Download
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ZDI-12-136 : Apple QuickTime Invalid Public Movie Atom Remote Code
Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-12-136
August 17, 2012

- -- CVE ID:
CVE-2011-3220

- -- CVSS:
7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P

- -- Affected Vendors:
Apple

- -- Affected Products:
Apple QuickTime

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

The specific flaw exists within how the application handles a malformed
atom type when playing a movie encoded with uncompressed audio. When
decoding the audio sample the application will use a 16-bit length for
allocating a buffer, and a different one for initializing it. This can
cause memory corruption which can lead to code execution under the context
of the application.

- -- Vendor Response:
Apple has issued an update to correct this vulnerability. More details can
be found at:
http://support.apple.com/kb/HT1222

- -- Disclosure Timeline:
2011-11-29 - Vulnerability reported to vendor
2012-08-17 - Coordinated public release of advisory

- -- Credit:
This vulnerability was discovered by:
* Luigi Auriemma

- -- 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/

Follow the ZDI on Twitter:

http://twitter.com/thezdi

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