ZDI-11-228: Apple ColorSync ICC Profile ncl2 Parsing Remote Code Execution Vulnerability

ZDI-11-228: Apple ColorSync ICC Profile ncl2 Parsing Remote Code Execution Vulnerability

http://www.zerodayinitiative.com/advisories/ZDI-11-228

June 29, 2011

– CVE ID:
CVE-2011-0200

– CVSS:
7.5, (AV:N/AC:L/Au:N/C:P/I:P/A:P)

– Affected Vendors:
Apple

– Affected Products:
Apple Mail
Apple OS X
Apple Safari

– TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 11426.
For further product information on the TippingPoint IPS, visit:

http://www.tippingpoint.com

– Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Apple Safari on Windows and multiple
applications on OSX. User interaction is required to exploit this
vulnerability in that the target must visit a malicious page or open a
malicious file.

The flaw exists within the ColorSync component which is used when
handling image files containing embedded ICC data. When handling the
ncl2 tag the process miscalculates an integer value used in a memory
allocation. This buffer is later used as a destination when copying user
controlled data. A remote attacker can exploit this vulnerability to
execute arbitrary code under the context of the user running the
application.

– Vendor Response:
Apple has issued an update to correct this vulnerability. More
details can be found at:

http://support.apple.com/kb/HT4723

– Disclosure Timeline:
2011-04-04 - Vulnerability reported to vendor
2011-06-29 - Coordinated public release of advisory

– Credit:
This vulnerability was discovered by:
* binaryproof

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