CVE-2011-3437 - Numeric Errors vulnerability in Apple MAC OS X and MAC OS X Server



Last modification



Integer signedness error in Apple Type Services (ATS) in Apple Mac OS X 10.7 before 10.7.2 allows remote attackers to execute arbitrary code via a crafted embedded Type 1 font in a document.


Apple Mac OS X is prone to a remote code-execution vulnerability that affects the ATS component.Attackers can exploit this issue to execute arbitrary code in the context of the affected application. Failed attacks will cause denial-of-service conditions.OS X versions 10.7.x prior to 10.7.2 are affected.NOTE: This issue was previously discussed in BID 50085 (Apple Mac OS X Prior to 10.7.2 Multiple Security Vulnerabilities) but has been given its own record to better document it.


Vendor updates are available. Please see the references for more information. Apple Mac OS X 10.7.1 Apple MacOSXUpd10.7.2.dmg Apple Mac OS X Server 10.7 Apple MacOSXServerUpdCombo10.7.2.dmg Apple Mac OS X Server 10.7.1 Apple MacOSXServerUpd10.7.2.dmg Apple Mac OS X 10.7 Apple MacOSXUpdCombo10.7.2.dmg


Currently we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at:


CWE-189 - Numeric Errors

Risk level (CVSS AV:N/AC:M/Au:N/C:P/I:P/A:P)



Access Vector

  • Network
  • Adjacent Network
  • Local

Access Complexity

  • Low
  • Medium
  • High


  • None
  • Single
  • Multiple

Confident. Impact

  • Complete
  • Partial
  • None

Integrity Impact

  • Complete
  • Partial
  • None

Affected Products

Vendor Product Versions
Apple MAC OS X  10.7.0 , 10.7.1
Apple MAC OS X Server  10.7.0 , 10.7.1