Advisory Details

October 27th, 2011

Apple Quicktime Empty URL Data Handler Remote Code Execution Vulnerability

ZDI-11-311
ZDI-CAN-1219

CVE ID CVE-2011-3220
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 11804. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS


This vulnerability allows remote attackers to potentially disclose memory addresses on vulnerable installations of Apple 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 QuickTime.qts parses a data handler in specific atom within a .mov file. The application will utilize a string length to copy data into an heap buffer, if the string is of zero-length, the application will fail to copy anything and then proceed to use the uninitialized buffer as a string.

VENDOR RESPONSE Apple has issued an update to correct this vulnerability. More details can be found at:
http://support.apple.com/kb/HT5002
DISCLOSURE TIMELINE
  • 2011-05-12 - Vulnerability reported to vendor
  • 2011-10-27 - Coordinated public release of advisory
CREDIT Luigi Auriemma
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