78806 : Apple Mac OS X CoreText Component Use-after-free Font Handling Remote Memory Corruption
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Timeline
Disclosure Date
2012-02-01

Description

A memory corruption flaw exists in Mac OS X. The CoreText component fails to sanitize user-supplied input when handling fonts resulting in memory corruption. With a specially crafted font, a context-dependent attacker can cause a denial of service or potentially execute arbitrary code.

Classification

 Location: Local / Remote, Context Dependent
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Patch / RCS, Upgrade
Exploit: Exploit Private
Disclosure: Vendor Verified, Coordinated Disclosure

Solution

Upgrade to version 10.7.3 or higher, as it has been reported to fix this vulnerability. In addition, Apple has released a patch for some older versions.

Products
Apple Inc.
Mac OS X
 10.6.8
Mac OS X Server
 10.6.8
Mac OS X Lion
 10.7
10.7.1
10.7.2
Mac OS X Lion Server
 10.7
10.7.1
10.7.2

References

Credit

CVSSv2 Score

CVSSv2 Base Score = 6.8
Source: nvd.nist.gov | Generated: 2012-02-03 | Disagree?

Access_vector_2 Access_complexity_1 Authentication_2 Confidentiality_impact_1 Integrity_impact_1 Availability_impact_1

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