iPhone/iPod touch Software Version 3.1.3 Now Available

iphone 3.1.3 software update

iPhone OS 3.1.3 and iPhone OS 3.1.3 for iPod touch software update details

  • CoreAudio

Impact: Playing a maliciously crafted mp4 audio file may lead to an unexpected application termination or arbitrary code execution

Description: A buffer overflow exists in the handling of mp4 audio files. Playing a maliciously crafted mp4 audio file may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved bounds checking. Credit to Tobias Klein of trapkit.de for reporting this issue.

  • ImageIO

Impact: Viewing a maliciously crafted TIFF image may lead to an unexpected application termination or arbitrary code execution

Description: A buffer underflow exists in ImageIO’s handling of TIFF images. Viewing a maliciously crafted TIFF image may lead to an unexpected application termination or arbitrary code execution. This issue is addressed through improved bounds checking.

  • Recovery Mode

Impact: A person with physical access to a locked device may be able to access the user’s data

Description: A memory corruption issue exists in the handling of a certain USB control message. A person with physical access to the device could use this to bypass the passcode and access the user’s data. This issue is addressed through improved handling of the USB control message.

  • WebKit

Impact: Accessing a maliciously crafted FTP server could result in an unexpected application termination, information disclosure, or arbitrary code execution

Description: Multiple input validation issues exist in WebKit’s handling of FTP directory listings. Accessing a maliciously crafted FTP server may lead to information disclosure, unexpected application termination, or execution of arbitrary code. This update addresses the issues through improved parsing of FTP directory listings. Credit to Michal Zalewski of Google Inc. for reporting these issues.

  • WebKit

Impact: Mail may load remote audio and video content when remote image loading is disabled

Description: When WebKit encounters an HTML 5 Media Element pointing to an external resource, it does not issue a resource load callback to determine if the resource should be loaded. This may result in undesired requests to remote servers. As an example, the sender of an HTML-formatted email message could use this to determine that the message was read. This issue is addressed by generating resource load callbacks when WebKit encounters an HTML 5 Media Element.

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