For the protection of our customers, Apple does not disclose, discuss, or confirm security issues until a full investigation has occurred and any necessary patches or releases are available. To learn more about Apple Product Security, see the Apple Product Security website.
For information about the Apple Product Security PGP Key, see "How to use the Apple Product Security PGP Key."
Where possible, CVE IDs are used to reference the vulnerabilities for further information.
To learn about other Security Updates, see "Apple Security Updates."
iOS 4.2.9 Software Update for iPhone
-
CoreGraphics
Available for: iOS 4.2.5 through 4.2.8 for iPhone 4 (CDMA model)
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 model)
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 : comex
-
IOMobileFrameBuffer
Available for: iOS 4.2.5 through 4.2.8 for iPhone 4 (CDMA model)
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 : comex