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APPLE-SA-2007-06-20 Apple TV 1.1
Apple TV 1.1 is now available and, along with its other content, addresses the following security issue:
Available for: Apple TV
Impact: A remote attacker may be able to cause a denial of service or arbitrary code execution
Description: A buffer overflow vulnerability exists in the UPnP IGD (Internet Gateway Device Standardized Device Control Protocol) code used to create Port Mappings on home NAT gateways in the Apple TV implementation. By sending a maliciously crafted packet, a remote attacker can trigger the overflow which may lead to an unexpected application termination or arbitrary code execution. This update addresses the issue by performing additional validation when processing UPnP protocol packets. Credit to Michael Lynn of Juniper Networks for reporting this issue.
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 "1.1" * To exit the About screen to the main menu, press Menu
Information will also be posted to the Apple Product Security web site: http://docs.info.apple.com/article.html?artnum=61798
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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