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Category:   Device (Multimedia)  >   Apple TV Vendors:   Apple Computer
(Apple Issues Fix for Apple TV) QuickTime Movie/PICT/QTVR/Java Bugs Let Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1020976
SecurityTracker URL:  http://securitytracker.com/id/1020976
CVE Reference:   CVE-2007-4674   (Links to External Site)
Date:  Oct 3 2008
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.0, 2.1
Description:   Several vulnerabilities were reported in QuickTime. A remote user can cause arbitrary code to be executed on the target user's system. Apple TV is affected by one of the vulnerabilities.

A remote user can create a specially crafted file that, when loaded by the target user, will execute arbitrary code on the target system. The code will run with the privileges of the target user.

A movie with a specially crafted image description atom can trigger code execution [CVE-2007-2395]. Dylan Ashe of Adobe Systems Incorporated reported this vulnerability.

A movie with specially crafted Sample Table Sample Descriptor (STSD) atoms can trigger code execution [CVE-2007-3750]. Tobias Klein of www.trapkit.de reported this vulnerability.

A specially crafted Java applet can obtain potentially sensitive information or execute arbitrary code with elevated privileges on the target user's system [CVE-2007-3751]. Adam Gowdiak for reported this vulnerability.

A specially crafted PICT image can trigger arbitrary code execution [CVE-2007-4672, CVE-2007-4676]. Ruben Santamarta of reversemode.com reported these vulnerabilities via TippingPoint.

A movie file with a specially crafted movie atom can trigger arbitrary code execution [CVE-2007-4674]. Cody Pierce of TippingPoint DVLabs reported this vulnerability.

A specially crafted QTVR movie can trigger arbitrary code execution [CVE-2007-4675]. Mario Ballano from 48bits.com reported this vulnerability via iDefense.

A movie file with a specially crafted color table atom can trigger arbitrary code execution [CVE-2007-4677]. Ruben Santamarta of reversemode.com and Mario Ballano of 48bits.com reported this vulnerability via TippingPoint.
Impact:   A remote user can create a file that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   Apple has released a fix for CVE-2007-4674 for Apple TV, available via the automatic update feature.

The Apple advisory is available at:

http://support.apple.com/kb/HT3189
Vendor URL:  support.apple.com/kb/HT3189 (Links to External Site)
Cause:   Access control error, Boundary error, Input validation error
Underlying OS:  

Message History:   This archive entry is a follow-up to the message listed below.
Nov 5 2007 QuickTime Movie/PICT/QTVR/Java Bugs Let Remote Users Execute Arbitrary Code


 Source Message Contents
Date:  Thu, 2 Oct 2008 19:39:42 -0700
Subject:  APPLE-SA-2008-10-02 Apple TV 2.2


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

APPLE-SA-2008-10-02 Apple TV 2.2

Apple TV 2.2 is now available and addresses the following issues:

Apple TV
CVE-ID:  CVE-2007-4674
Available for:  Apple TV 1.0 and 2.1
Impact:  Viewing a maliciously crafted movie file may lead to an
unexpected application termination or arbitrary code execution.
Description:  An integer arithmetic issue in the handling of certain
movie file atoms may lead to a stack buffer overflow. Opening a
maliciously crafted movie file may lead to an unexpected application
termination or arbitrary code execution. This update addresses the
issue through improved handling of atom length fields in movie files.
Credit to Cody Pierce of TippingPoint DVLabs for reporting this
issue.

Apple TV
CVE-ID:  CVE-2008-3626
Available for:  Apple TV 1.0 and 2.1
Impact:  Viewing a maliciously crafted movie file may lead to an
unexpected application termination or arbitrary code execution
Description:  A memory corruption issue exists in the handling of
STSZ atoms in movie files. Viewing a maliciously crafted movie file
may lead to an unexpected application termination or arbitrary code
execution. This update addresses the issue through improved bounds
checking of STSZ atoms. Credit to an anonymous researcher working
with TippingPoint's Zero Day Initiative for reporting this issue.

Apple TV
CVE-ID:  CVE-2008-3629
Available for:  Apple TV 1.0 and 2.1
Impact:  Opening a maliciously crafted PICT image may lead to an
unexpected application termination
Description:  An out-of-bounds read issue exists in the handling of
PICT images. Opening a maliciously crafted PICT image may lead to an
unexpected application termination. This update addresses the issue
by performing additional validation of PICT images. Credit to Sergio
'shadown' Alvarez of n.runs AG for reporting this issue.

Installation note:

The Apple TV device will automatically check Apple's update server on
its weekly schedule.  When an update is detected, it will download
it, verify its signature, and install it.

This process may take up to a week depending on the day that the
Apple TV device checks for updates.  Alternatively, you may manually
update your Apple TV using the TV interface by selecting
Settings > Update Software.

This update is only available directly to the Apple TV, and will not
appear in your computer's Software Update application, or in the
Apple Downloads site.

To check that the Apple TV has been updated, use the TV interface:

* Navigate to Settings
* Select About
* The Software Version after applying this update will be "2.2"
* To exit the About screen to the main menu, press Menu

Information will also be posted to the Apple Security Updates
web site:  http://support.apple.com/kb/HT1222

This message is signed with Apple's Product Security PGP key,
and details are available at:
http://www.apple.com/support/security/pgp/

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