Advisory Details

August 16th, 2011

Apple QuickTime Player H.264 Slice Header Remote Code Execution Vulnerability

ZDI-11-257
ZDI-CAN-1231

CVE ID CVE-2011-0247
CVSS SCORE 9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)
AFFECTED VENDORS Apple
AFFECTED PRODUCTS Quicktime
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 11553. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
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 or open a malicious file.

The specific flaw exists within how the application parses a frame within an H.264 encoded movie. When processing a particular set of flags of a structure, the application will use a length that is defined within the structure to copy data into a statically sized buffer on the stack. Due to the application failing to check the bounds of this length, the application will write outside the bounds of the buffer which can lead to code execution under the context of the application.

ADDITIONAL DETAILS Apple has issued an update to correct this vulnerability. More details can be found at:
http://support.apple.com/kb/HT4826
DISCLOSURE TIMELINE
  • 2011-05-12 - Vulnerability reported to vendor
  • 2011-08-16 - Coordinated public release of advisory
CREDIT Roi Mallo & Sherab Giovannini
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