Advisory Details

August 16th, 2011

Apple QuickTime STSC atom Parsing Remote Code Execution Vulnerability

ZDI-11-258
ZDI-CAN-1160

CVE ID CVE-2011-0249
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 11556. 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 the way Quicktime handles the Sample-to-Chunks table in media files with 'twos' audio codec. If a value for 'samples per chunk' is bigger than 8 times the sample rate from the 'Sample Description Atom' it will cause a buffer overflow during the parsing of the atom sample table. This can result in remote code execution under the context of the current user.

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
  • 2011-04-11 - Vulnerability reported to vendor
  • 2011-08-16 - Coordinated public release of advisory
CREDIT Matt "j00ru" Jurczyk
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