[NT] Quick Time Media Player for Windows Buffer Overflow
From: email@example.com To: firstname.lastname@example.org Date: 2 Apr 2003 23:52:07 +0200
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Quick Time Media Player for Windows Buffer Overflow
<http://www.apple.com/quicktime/> QuickTime Player is a popular media
player for both the Microsoft Windows and Apple Mac platforms.
An exploitable buffer overflow condition has been discovered in Apple
Computer Inc.'s QuickTime Player, allowing for the remote execution of
The vulnerability lies in the processing of long QuickTime URL's
(quicktime:// or through the -u switch). When processing a QuickTime URL,
the application is launched in the following manner as can be seen from
the Windows registry key HKEY_CLASSES_ROOT/quicktime:
%PATH TO QUICKTIME%\QuickTimePlayer.exe -u"%1"
A URL containing 400 characters will overrun the allocated space on the
stack overwriting the saved instruction pointer (EIP). This will thereby
allow an attacker to redirect the flow of control. An example URL that
will cause QuickTime player to crash is:
Where the character 'A' is repeated 400 times.
iDEFENSE has confirmed that QuickTime Player versions 5.x and 6.0 for the
Microsoft Windows platform are vulnerable. QuickTime for MacOS is not
Any remote attacker can compromise a target system if he or she can
convince a user to load a specially crafted exploit URL. Upon successful
exploitation, arbitrary code can be executed under the privileges of the
user who launched QuickTime.
Removing the QuickTime handler from the web browser or removing the
registry key HKEY_CLASSES_ROOT/quicktime can prevent automatic
exploitation through HTML pages.
Apple has released QuickTime 6.1 which addresses this vulnerability. It
is available from <http://www.apple.com/quicktime/download/> .
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