ZDI-07-023: Apple QTJava toQTPointer() Pointer Arithmetic Memory
May 1, 2007
-- CVE ID:
-- Affected Vendor:
-- Affected Products:
-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability since April 23, 2007 by Digital Vaccine protection
filter ID 5310, 5311. For further product information on the TippingPoint
-- Vulnerability Details:
This vulnerability allows attackers to execute arbitrary code on systems
with vulnerable installations of Apple's QuickTime. User interaction is
required to exploit this vulnerability in that the target must visit a
The flaw exists within the QuickTime Java extensions (QTJava.dll),
specifically the routine toQTPointer() exposed through
quicktime.util.QTHandleRef. A lack of sanity checking on the parameters
passed to this routine, through the Java Virtual Machine (JVM), allows
an attacker to write arbitrary values to memory. This can be leveraged
to execute arbitrary code under the context of the current user.
Example code execution vectors include Microsoft Internet Explorer,
Mozilla Firefox and Apple Safari. This vulnerability affects the latest
versions of both the MacOS and Windows operating systems, including
MacOS 10.4.9 and Windows Vista.
-- Vendor Response:
Apple has issued an update to correct this vulnerability. More details
can be found at:
-- Disclosure Timeline:
2007.04.23 - Vulnerability reported to vendor
2007.04.23 - Digital Vaccine released to TippingPoint customers
2007.05.01 - Coordinated public release of advisory
This vulnerability was discovered by Dino A. Dai Zovi.
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