Vulnerability Note VU#690515

Apple QuickTime buffer overflow vulnerability

Overview

Apple QuickTime contains a stack buffer overflow vulnerability. If exploited, this vulnerability may allow an attacker to execute code.

I. Description

Apple QuickTime is a media player that includes a browser plugin. QuickTime can display PICT images.

From Apple Article ID: 306896"About the security content of QuickTime 7.3":

A stack buffer overflow exists in PICT image processing. By enticing a user to open a maliciously crafted image, an attacker may cause an unexpected application termination or arbitrary code execution. This update addresses the issue by performing additional validation of PICT files. Credit to Ruben Santamarta of reversemode.com working with TippingPoint and the Zero Day Initiative for reporting this issue.

To exploit this vulnerability, an attacker would have to convince a user to open a specially crafted PICT image, which could be hosted on a web page.

II. Impact

A remote, unauthenticated attacker may be able to execute arbitrary code or cause QuickTime to crash.

III. Solution

Upgrade

Apple has addressed this issue in QuickTime 7.3.

Systems Affected

Vendor	Status	Date Updated
Apple Computer, Inc.	Vulnerable	13-Nov-2007

References

http://docs.info.apple.com/article.html?artnum=306896
http://www.zerodayinitiative.com/advisories/ZDI-07-067.html

Credit

Apple credits Ruben Santamarta of reversemode.com and TippingPoint for reporting this issue.

This document was written by Ryan Giobbi.

Other Information

Date Public	11/05/2007
Date First Published	11/13/2007 11:30:09 AM
Date Last Updated	11/13/2007
CERT Advisory
CVE Name	CVE-2007-4676
Metric	19.15
Document Revision	2