Apple iOS FreeType code execution

appleios-freetype-code-exec (70552) The risk level is classified as HighHigh Risk

Description:

Apple iOS could allow a remote attacker to execute arbitrary code on the system, caused by the improper handling of FreeType fonts by the CoreGraphics component. By persuading a victim to open a specially-crafted document containing a malicious FreeType font, a remote attacker could exploit this vulnerability execute arbitrary code on the system.

*CVSS:

Base Score: 6.8
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 5
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of Apple iOS (5 or later), available from the Apple Web site. See References.

For other distributions:
Apply the appropriate update for your system. See References.

References:

  • Apple Web site: About the security content of iOS 5 Software Update.
  • Oracle Security Blog, Mar 13, 2013: CVE-2011-3256 Denial of Service (DoS) vulnerability in FreeType 2.
  • BID-50155: FreeType Font Document Multiple Memory Corruption Vulnerabilities
  • CVE-2011-3256: FreeType 2 before 2.4.7, as used in CoreGraphics in Apple iOS before 5, Mandriva Enterprise Server 5, and possibly other products, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted font, a different vulnerability than CVE-2011-0226.
  • DSA-2328: freetype -- missing input sanitising
  • RHSA-2011-1402: Important: freetype security update
  • RHSA-2012-0094: Important: freetype security update
  • SA46377: Apple iOS Multiple Vulnerabilities
  • SA46575: FreeType Multiple Vulnerabilities
  • SA52618: Oracle Solaris FreeType 2 Multiple Vulnerabilities

Platforms Affected:

  • Apple iPad 4.3
  • Apple iPad 4.3.1
  • Apple iPad 4.3.2
  • Apple iPad 4.3.3
  • Apple iPhone 3GS
  • Apple iPhone OS 3.0
  • Apple iPhone OS 3.0.1
  • Apple iPhone OS 3.1
  • Apple iPhone OS 3.1.2
  • Apple iPhone OS 3.1.3
  • Apple iPhone OS 3.2
  • Apple iPhone OS 3.2.1
  • Apple iPhone OS 3.2.2
  • Apple iPhone OS 4.0
  • Apple iPhone OS 4.0.1
  • Apple iPhone OS 4.0.2
  • Apple iPhone OS 4.1
  • Apple iPhone OS 4.2
  • Apple iPhone OS 4.3
  • Apple iPhone OS 4.3.1
  • Apple iPhone OS 4.3.2
  • Apple iPhone OS 4.3.3
  • Apple iPhone4 IOS 4.3.2
  • Apple iPod touch 4.3
  • Apple iPod touch 4.3.1
  • Apple iPod touch 4.3.2
  • Apple iPod touch 4.3.3
  • Freetype Freetype 2.4.5
  • RedHat Enterprise Linux 4 ES
  • RedHat Enterprise Linux 4 WS
  • RedHat Enterprise Linux 4 AS
  • RedHat Enterprise Linux 4 Desktop
  • RedHat Enterprise Linux 5 Client Workstation
  • RedHat Enterprise Linux 5
  • RedHat Enterprise Linux 5 Client
  • RedHat Enterprise Linux 6 Server
  • RedHat Enterprise Linux 6 Workstation
  • RedHat Enterprise Linux Desktop 6
  • RedHat Enterprise Linux EUS 5.6.z
  • RedHat Enterprise Linux HPC Node 6
  • RedHat Enterprise Linux Long Life 5.6
  • RedHat Enterprise Linux Server EUS 6.1.z
  • Sun Solaris 10
  • Sun Solaris 8
  • Sun Solaris 9

Reported:

Oct 12, 2011

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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