[NEWS] Apple QuickTime FPX Integer Overflow
- From: SecuriTeam <support@xxxxxxxxxxxxxx>
- Date: 14 May 2006 18:03:01 +0200
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Apple QuickTime FPX Integer Overflow
<http://www.apple.com/quicktime/> QuickTime is a multimedia technology
developed by Apple Computer, capable of handling various formats of
digital video, sound, text, animation, music, and immersive panoramic (and
sphere panoramic) images
There is an integer overflow in the way QuickTime processes fpx format
files. An attacker can create an fpx file and send it to the user via
email, web page, or fpx file with ActiveX.
* Quicktime for Windows 2000
* Quicktime for Windows XP
* Quicktime for Mac OS X 10.3.9
In an fpx file, there is a field that figures out how many blocks of data
there are in that file. One block data size is 0x200, QuickTime Player
will allocate memory relying on (number*0x200) but does not check the size
value and an integer overflow can occur. If you set the block value to
0x800000 an integer overflow will occur which will then cause a heap
overflow and write invalid memory.
QuickTime: QuickTime File Format
Apple has released a patch for this vulnerability information is available
The information has been provided by <mailto:Advisories@xxxxxxxx> eEye
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