bugtraq - [EEYEB-20060307] Apple QuickTime FPX Integer Overflow

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Message-ID: <D52FCFAE57472647956CBAEDC08DA553AB5B65@av-mail01.corp.int-eeye.com>
Date: Thu, 11 May 2006 15:25:49 -0700
From: "eEye Advisories" <Advisories@...e.com>
To: <full-disclosure@...ts.grok.org.uk>, <bugtraq@...urityfocus.com>,
	<ntbugtraq@...ugtraq.com>, <vulnwatch@...nwatch.org>
Subject: [EEYEB-20060307] Apple QuickTime FPX Integer
	Overflow

Apple QuickTime FPX Integer Overflow

Release Date:
May 11, 2006

Date Reported:
March 7, 2006

Patch Development Time (In Days):
65     

Severity:
High (Remote Code Execution)

Vendor:
Apple

Systems Affected:
Quicktime on Windows 2000
Quicktime on Windows XP
Quicktime on Mac OS X 10.3.9

References:
This vulnerability has been assigned CVE-2006-1249

Overview:
eEye Digital Security has discovered a critical vulnerability in
QuickTime Player. There is a integer overflow in the way QuickTime
processes fpx format files. An attacker can create a fpx file and send
it to the user via email, web page, or fpx file with activex.

Technical Description:
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
http://developer.apple.com/documentation/QuickTime/QTFF/index.html

Protection:
Retina Network Security Scanner has been updated to identify this
vulnerability.
Blink - Endpoint Vulnerability Prevention - preemptively protects from
this vulnerability.

Vendor Status:
Apple has released a patch for this vulnerability information is
available at  http://docs.info.apple.com/article.html?artnum=61798

Credit:
Discovery: Fang Xing

Copyright (c) 1998-2006 eEye Digital Security Permission is hereby
granted for the redistribution of this alert electronically. It is not
to be edited in any way without express consent of eEye. If you wish to
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excluding electronic medium, please email alert@...e.com for permission.

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