iPod touch v2.1が利用可能になっています。本アップデートはソフトウェア・アップデート経由では行われません。iTunesを通してのみ行われます。iTunesは週に一度、アップデートをチェックしており、アップデートを検出するとダウンロードを行います。次回、iPod touchが接続されたときにアップデートを適用します。手動でアップデートを行うには、iTuneから「アップデートをチェック」ボタンをクリックして下さい。その後でiPod touchをドックに接続するとアップデートが行われます。
以下、Apple Product Securityからのメールを引用。
以下、Apple Product Securityからのメールを引用。
APPLE-SA-2008-09-09 iPod touch v2.1
iPod touch v2.1 is now available and addresses the following issues:
Application Sandbox
CVE-ID: CVE-2008-3631
Available for: iPod touch v2.0 through v2.0.2
Impact: An application may be able to read another application's files
Description: The Application Sandbox does not properly enforce access restrictions between third-party applications. This may allow a third-party application to read files in another third-party application's sandbox and lead to the disclosure of sensitive information. This update addresses the issue by enforcing the proper access restrictions between application sandboxes. Credit to Nicolas Seriot of Sen:te and Bryce Cogswell for reporting this issue. This issue does not affect iPod touch versions prior to v2.0.
CoreGraphics
CVE-ID: CVE-2008-1806, CVE-2008-1807, CVE-2008-1808
Available for: iPod touch v1.1 through v2.0.2
Impact: Multiple vulnerabilities in FreeType v2.3.5
Description: Multiple vulnerabilities exist in FreeType v2.3.5, the most serious of which may lead to arbitrary code execution when accessing maliciously crafted font data. This update addresses the issue by incorporating the security fixes from version 2.3.6 of FreeType. Further information is available via the FreeType site at http://www.freetype.org/
mDNSResponder
CVE-ID: CVE-2008-1447
Available for: iPod touch v1.1 through v2.0.2
Impact: mDNSResponder is susceptible to DNS cache poisoning and may return forged information
Description: mDNSResponder provides translation between host names and IP addresses for applications that use its unicast DNS resolution API. A weakness in the DNS protocol may allow a remote attacker to perform DNS cache poisoning attacks. As a result, applications that rely on mDNSResponder for DNS may receive forged information. This update addresses the issue by implementing source port and transaction ID randomization to improve resilience against cache poisoning attacks. Credit to Dan Kaminsky of IOActive for reporting this issue.
Networking
CVE-ID: CVE-2008-3612
Available for: iPod touch v2.0 through v2.0.2
Impact: Predictable TCP initial sequence numbers generation may lead to TCP spoofing or session hijacking
Description: TCP initial sequence numbers are sequentially generated. Predictable initial sequence numbers may allow a remote attacker to create a spoofed TCP connection or insert data into an existing TCP connection. This update addresses the issue by generating random TCP initial sequence numbers. This issue does not affect iPod touch versions prior to v2.0.
WebKit
CVE-ID: CVE-2008-3632
Available for: iPod touch v1.1 through v2.0.2
Impact: Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution
Description: A use-after-free issue exists in WebKit's handling of CSS import statements. Visiting a maliciously crafted website may lead to an unexpected application termination or arbitrary code execution. This update addresses the issue through improved handling of document references.
Installation note:
This update is only available through iTunes, and will not appear in your computer's Software Update application, or in the Apple Downloads site. Make sure you have an internet connection and have installed the latest version of iTunes from www.apple.com/itunes/
iTunes will automatically check Apple's update server on its weekly schedule. When an update is detected, it will download it. When the iPod touch is docked, iTunes will present the user with the option to install the update. We recommend applying the update immediately if possible. Selecting "don't install" will present the option the next time you connect your iPod touch.
The automatic update process may take up to a week depending on the day that iTunes checks for updates. You may manually obtain the update via the "Check for Update" button within iTunes. After doing this, the update can be applied when your iPod touch is docked to your computer.
To check that the iPod touch has been updated:
* Navigate to Settings
* Select General
* Select About. The version after applying this update will be "2.1 (5F135)" or later
Information will also be posted to the Apple Security Updates web site: http://support.apple.com/kb/HT1222
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