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ZDI-12-107 : Apple Quicktime TeXML Style Element Parsing Remote Code
Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-12-107
June 28, 2012

- -- CVE ID:
CVE-2012-0663

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

- -- Affected Vendors:
Apple

- -- Affected Products:
Apple QuickTime


- -- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 12406.
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 Quicktime. 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 parsing of XML elements within a TeXML
file. Specifically, when handling the style XML element the code within
QuickTime3GPP.qtx does not properly validate the length of the data within
specific sub-fields. By providing specially crafted data, the code can be
made to copy too much into a fixed-length buffer on the stack. Exploitation
of this vulnerability could allow a remote attacker to execute arbitrary
code under the context of the user running Quicktime.

- -- Vendor Response:



- -- Disclosure Timeline:
2011-10-21 - Vulnerability reported to vendor
2012-06-28 - Coordinated public release of advisory


- -- Credit:
This vulnerability was discovered by:
* Alexander Gavrun


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