ZDI-12-136 : Apple QuickTime Invalid Public Movie Atom Remote Code Execution Vulnerability

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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

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