Apple Mac OS X CoreText code execution

macosx-coretext-code-execution (38465) The risk level is classified as HighHigh Risk

Description:

The CoreText component in Apple Mac OS X could allow a remote attacker to execute arbitrary code on the system, caused by improper initialization of object pointers. By persuading a victim to view specially-crafted text, an attacker could exploit this vulnerability to corrupt memory and execute arbitrary code on the system or cause the affected application to crash.

Platforms Affected:

  • Apple, Mac OS X 10.4
  • Apple, Mac OS X 10.4.1
  • Apple, Mac OS X 10.4.10
  • Apple, Mac OS X 10.4.2
  • Apple, Mac OS X 10.4.3
  • Apple, Mac OS X 10.4.4
  • Apple, Mac OS X 10.4.5
  • Apple, Mac OS X 10.4.6
  • Apple, Mac OS X 10.4.7
  • Apple, Mac OS X 10.4.8
  • Apple, Mac OS X 10.4.9
  • Apple, Mac OS X Server 10.4
  • Apple, Mac OS X Server 10.4.1
  • Apple, Mac OS X Server 10.4.10
  • Apple, Mac OS X Server 10.4.2
  • Apple, Mac OS X Server 10.4.3
  • Apple, Mac OS X Server 10.4.4
  • Apple, Mac OS X Server 10.4.5
  • Apple, Mac OS X Server 10.4.6
  • Apple, Mac OS X Server 10.4.7
  • Apple, Mac OS X Server 10.4.8
  • Apple, Mac OS X Server 10.4.9

Remedy:

Apply Apple Security Update 2007-008 or upgrade to the latest version of Mac OS X (10.4.11 or later), available from the Apple Web site. See References.

Consequences:

Gain Access

References:

  • Apple Web site, About the security content of Mac OS X 10.4.11 and Security Update 2007-008 at http://docs.info.apple.com/article.html?artnum=307041.
  • BID-26444: Apple Mac OS X v10.4.11 2007-008 Multiple Security Vulnerabilities
  • CVE-2007-4682: CoreText in Apple Mac OS X 10.4 through 10.4.10 allows attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted text content that triggers an access of an uninitialized object pointer.
  • SA27643: Apple Mac OS X Security Update Fixes Multiple Vulnerabilities
  • SECTRACK ID: 1018950: Mac OS X Kernel and Networking Bugs Let Remote and Local Users Deny Service or Execute Arbitrary Code
  • US-CERT VU#498105: Apple Mac OS X CoreText uninitialized pointer vulnerability
  • VUPEN/ADV-2007-3868: Apple Mac OS X Command Execution and Denial of Service Vulnerabilities

Reported:

Nov 14, 2007

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