Vulnerability Note VU#346396

Apple QuickDraw Manager fails to properly handle malicious PICT images

Overview

A vulnerability exists in how Apple OS X handles PICT images. If successfully exploited, this vulnerability may allow a remote attacker to execute arbitrary code, or create a denial-of-service condition.

I. Description

From Apple,

Certain applications invoke an unsupported QuickDraw operation to display PICT images. By carefully crafting a corrupt PICT image, an attacker can trigger memory corruption in these applications, which may lead to an application crash or arbitrary code execution. This update addresses the issue by preventing the unsupported operation.

II. Impact

A remote, unauthenticated attacker may be able to execute arbitrary code with the privileges of the user who opened the malicious file.

III. Solution

Update

Apple has released an update that addresses this issue.

Do not open unknown files with privileged accounts

Opening unknown files using user accounts with limited privileges may mitigate the affects of this vulnerability. See the Home Network Security document for more details.

Systems Affected

Vendor	Status	Date Notified	Date Updated
Apple Computer, Inc.	Vulnerable	2-Oct-2006

References

http://secunia.com/advisories/22187/
http://www.cert.org/tech_tips/home_networks.html#IV
http://docs.info.apple.com/article.html?artnum=304460

Credit

This report was based on information in Apple Security Update 2006-006.

This document was written by Ryan Giobbi.

Other Information

Date Public:	2006-09-29
Date First Published:	2006-10-02
Date Last Updated:	2006-10-02
CERT Advisory:
CVE-ID(s):	CVE-2006-4395
NVD-ID(s):	CVE-2006-4395
US-CERT Technical Alerts:
Metric:	0.54
Document Revision:	24

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Produced 2006 by US-CERT, a government organization
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