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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2011.0731
                   iOS 4.2.9 Software Update for iPhone
                               18 July 2011

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:          Apple iOS
Publisher:        Apple
Operating System: Apple iOS
Impact/Access:    Execute Arbitrary Code/Commands -- Remote with User Interaction
                  Denial of Service               -- Remote with User Interaction
                  Administrator Compromise        -- Remote with User Interaction
Resolution:       Patch/Upgrade
CVE Names:        CVE-2011-0227 CVE-2011-0226 CVE-2010-3855

Comment: This bulletin contains two (2) Apple security advisories.

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APPLE-SA-2011-07-15-1 iOS 4.3.4 Software Update

iOS 4.3.4 Software Update is now available and addresses the
following:

CoreGraphics
Available for:
iOS 3.0 through 4.3.3 for iPhone 3GS and iPhone 4 (GSM),
iOS 3.1 through 4.3.3 for iPod touch (3rd generation) and later,
iOS 3.2 through 4.3.3 for iPad
Impact:  Viewing a maliciously crafted PDF file may lead to an
unexpected application termination or arbitrary code execution
Description:  A buffer overflow exists in FreeType's handling of
TrueType fonts. Viewing a maliciously crafted PDF file may lead to an
unexpected application termination or arbitrary code execution.
CVE-ID
CVE-2010-3855

CoreGraphics
Available for:
iOS 3.0 through 4.3.3 for iPhone 3GS and iPhone 4 (GSM),
iOS 3.1 through 4.3.3 for iPod touch (3rd generation) and later,
iOS 3.2 through 4.3.3 for iPad
Impact:  Viewing a maliciously crafted PDF file may lead to an
unexpected application termination or arbitrary code execution
Description:  A signedness issue exists in FreeType's handling of
Type 1 fonts. Viewing a maliciously crafted PDF file may lead to an
unexpected application termination or arbitrary code execution.
CVE-ID
CVE-2011-0226

IOMobileFrameBuffer
Available for:
iOS 3.0 through 4.3.3 for iPhone 3GS and iPhone 4 (GSM),
iOS 3.1 through 4.3.3 for iPod touch (3rd generation) and later,
iOS 3.2 through 4.3.3 for iPad
Impact:  Malicious code running as the user may gain system
privileges
Description:  An invalid type conversion issue exists in the use of
IOMobileFrameBuffer queueing primitives, which may allow malicious
code running as the user to gain system privileges.
CVE-ID
CVE-2011-0227


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, iPod touch or iPad 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, iPod touch,
or iPad.

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 Updates button within iTunes. After doing
this, the update can be applied when your iPhone, iPod touch, or iPad
is docked to your computer.

To check that the iPhone, iPod touch, or iPad has been updated:

* Navigate to Settings
* Select General
* Select About. The version after applying this update will be
"4.3.4 (8K2)".

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:
https://www.apple.com/support/security/pgp/

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APPLE-SA-2011-07-15-2 iOS 4.2.9 Software Update for iPhone

iOS 4.2.9 Software Update for iPhone is now available and addresses
the following:

CoreGraphics
Available for:  iOS 4.2.5 through 4.2.8 for iPhone 4 (CDMA)
Impact:  Viewing a maliciously crafted PDF file may lead to an
unexpected application termination or arbitrary code execution
Description:  A buffer overflow exists in FreeType's handling of
TrueType font files. Viewing a maliciously crafted PDF file may lead
to an unexpected application termination or arbitrary code execution.
CVE-ID
CVE-2010-3855

CoreGraphics
Available for:  iOS 4.2.5 through 4.2.8 for iPhone 4 (CDMA)
Impact:  Viewing a maliciously crafted PDF file may lead to an
unexpected application termination or arbitrary code execution
Description:  A signedness issue exists in FreeType's handling of
Type 1 fonts. Viewing a maliciously crafted PDF file may lead to an
unexpected application termination or arbitrary code execution.
CVE-ID
CVE-2011-0226

IOMobileFrameBuffer
Available for:  iOS 4.2.5 through 4.2.8 for iPhone 4 (CDMA)
Impact:  Malicious code running as the user may gain system
privileges
Description:  An invalid type conversion issue exists in the use of
IOMobileFrameBuffer queueing primitives, which may allow malicious
code running as the user to gain system privileges.
CVE-ID
CVE-2011-0227


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, iPod touch or iPad 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, iPod touch,
or iPad.

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 Updates button within iTunes. After doing
this, the update can be applied when your iPhone, iPod touch, or iPad
is docked to your computer.

To check that the iPhone, iPod touch, or iPad has been updated:

* Navigate to Settings
* Select General
* Select About. The version after applying this update will be
"4.2.9 (8E501)".

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:
https://www.apple.com/support/security/pgp/

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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
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===========================================================================
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