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CERT Coordination Center

Apple Mac OS X CoreText embedded font vulnerability

Vulnerability Note VU#410281

Original Release Date: 2012-02-02 | Last Revised: 2012-03-28


Apple Mac OS X CoreText contains a use-after-free vulnerability that may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable system.


Apple Mac OS X CoreText is a text layout and font processing engine that is used to handle embedded fonts.CoreText contains a use-after-free vulnerability that can allow arbitrary code execution.


By convincing a user to open a document with a specially-crafted embedded font, a remote, unauthenticated attacker may be able to execute arbitrary code on a vulnerable system.


Apply an update

This issue is addressed in OS X Lion v10.7.3 and Security Update 2012-001.

Vendor Information

Affected   Unknown   Unaffected

Apple Inc.

Notified:  October 20, 2011 Updated:  February 02, 2012



Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

We are not aware of further vendor information regarding this vulnerability.

Vendor References

CVSS Metrics

Group Score Vector
Base 9.0 AV:N/AC:M/Au:N/C:C/I:C/A:P
Temporal 7.0 E:POC/RL:OF/RC:C
Environmental 7 CDP:ND/TD:ND/CR:ND/IR:ND/AR:ND



This vulnerability was reported by Will Dormann of the CERT/CC.

This document was written by Will Dormann.

Other Information

CVE IDs: CVE-2011-3449
Severity Metric: 5.77
Date Public: 2012-02-02
Date First Published: 2012-02-02
Date Last Updated: 2012-03-28 14:54 UTC
Document Revision: 5

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