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

Posted on 02 October 2008
Apple Security-announce

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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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