ZDI-11-311 : Apple Quicktime Empty URL Data Handler Remote Code Execution Vulnerability

ZDI-11-311 : Apple Quicktime Empty URL Data Handler Remote Code
Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-11-311
October 27, 2011

– CVE ID:
CVE-2011-3220

– CVSS:
9, AV:N/AC:L/Au:N/C:P/I:P/A:C

– 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 11804.
For further product information on the TippingPoint IPS, visit:

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:
This vulnerability was discovered by:

• Luigi Auriemma

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