ZDI-11-277: Apple QuickTime 3g2 'mp4v' atom size Remote Code Execution Vulnerability

[ZDI Disclosures <zdi-disclosures@xxxxxxxxxxxxxxxx>]

ZDI-11-277: Apple QuickTime 3g2 'mp4v' atom size Remote Code Execution 
Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-277

August 31, 2011

-- CVE ID:
CVE-2011-0258

-- 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 11366. 
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 way QuickTime handles 'mp4v' codec
information. When parsing the video description table it will read the
size field preceding the 'mp4v' tag and use that size to create an
allocation to hold the data. It will then copy the correct amount of
data into that buffer, but then does some endian changes on a fixed
portion of the buffer without checking its size. The resulting memory
corruption could result in remote code execution under the context of
the current user.

-- Vendor Response:
Apple has issued an update to correct this vulnerability. More
details can be found at:
http://support.apple.com/kb/HT4826

-- Disclosure Timeline:
2011-06-03 - Vulnerability reported to vendor
2011-08-31 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Damian Put

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