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(Apple Issues Fix for iPhone) LibTIFF Multiple Bugs Let Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1018936 |
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SecurityTracker URL: http://securitytracker.com/id/1018936
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CVE Reference:
CVE-2006-3459, CVE-2006-3461, CVE-2006-3462, CVE-2006-3465
(Links to External Site)
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Date: Nov 13 2007
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Impact:
Execution of arbitrary code via network, User access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): prior to 1.1.2
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Description:
A vulnerability was reported in LibTIFF. A remote user can cause arbitrary code to be executed on the target user's system. Apple iPhone and iPod Touch are affected.
A remote user can create a specially crafted TIFF file that, when processed by the target user with an application linked with LibTIFF, will execute arbitrary code on the target system. The code will run with the privileges of the target user or application.
Tavis Ormandy of Google discovered these vulnerabilities.
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Impact:
A remote user can create a TIFF file that, when loaded by the target user, will execute arbitrary code on the target user's system.
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Solution:
Apple has issued a fixed version (1.1.2) for CVE-2006-3459, CVE-2006-3461, CVE-2006-3462, and CVE-2006-3465 for iPhone and iPod Touch.
The Apple advisory is available at:
http://docs.info.apple.com/article.html?artnum=306993
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Cause:
Boundary error
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Underlying OS:
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Mon, 12 Nov 2007 15:00:44 -0800
Subject: APPLE-SA-2007-11-12 iPhone v1.1.2 and iPod Touch v1.1.2
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
APPLE-SA-2007-11-12 iPhone v1.1.2 and iPod Touch v1.1.2
iPhone v1.1.2 and iPod Touch v1.1.2 updates are now available and
address the following issue:
ImageIO
CVE-ID: CVE-2006-3459, CVE-2006-3461, CVE-2006-3462, CVE-2006-3465
Available for: iPhone v1.0 through v1.1.1,
iPod Touch v1.1 and v1.1.1
Impact: Viewing a maliciously crafted TIFF image may lead to an
unexpected application termination or arbitrary code execution
Description: ImageIO contains a version of libtiff that is
vulnerable to multiple buffer overflows. By enticing a user to view a
maliciously crafted TIFF image, an attacker may cause an unexpected
application termination or arbitrary code execution. This update
addresses the issues by performing additional validation of TIFF
images. These issues do not affect Mac OS X v10.3.9 systems with
Security Update 2006-004, Mac OS X v10.4.7 systems with Security
Update 2006-004, or systems running Mac OS X v10.4.8 or later. Credit
to Tavis Ormandy, Google Security Team for reporting this issue.
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 iPhone or 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 iPhone or 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 iPhone or iPod Touch is
docked to your computer.
To check that the iPhone or iPod Touch has been updated:
* Navigate to Settings
* Select General
* Select About. The version after applying this update will be
"1.1.2 (3B49)" or later
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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_______________________________________________
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Security-announce mailing list (Security-announce@lists.apple.com)
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