Advisory Details

June 29th, 2011

Apple QuickTime RIFF fmt Chunk Parsing Remote Code Execution Vulnerability

ZDI-11-229
ZDI-CAN-1124

CVE ID CVE-2011-0209
CVSS SCORE 7.5, AV:N/AC:L/Au:N/C:P/I:P/A:P
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 ['11430']. 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 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 how the application parses a specially formatted RIFF WAV file. When parsing a fmt chunk within the file, the application will use a 32-bit field to calculate the size of a buffer to allocate. Before the allocation, the application will add 0x14 bytes to the result. Due to restrictions imposed on the implementation of this component by the language and it's platform, an integer overflow can be made to occur. This 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/HT4723
DISCLOSURE TIMELINE
  • 2011-04-11 - Vulnerability reported to vendor
  • 2011-06-29 - Coordinated public release of advisory
CREDIT Luigi Auriemma
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