Apple Mac OS X WebKit may allow code execution when visiting a malicious website

Overview

A vulnerability in Apple Mac OS X WebKit may allow an attacker to execute arbitrary code on an affected system.

Description

WebKit

From the OpenDarwin WebKit project description,

_WebKit is an open source web browser engine. WebKit is also the name of the Mac OS X system framework version of the engine that’s used by Safari, Dashboard, Mail, and many other OS X applications. _

The Problem
Per Apple, an attacker may be able to create a specially crafted HTML document that could cause a previously deallocated object to be accessed.

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Impact

By convincing a user to view a specially crafted web page or HTML file, a remote, unauthenticated attacker may be able to execute arbitrary code with the privileges of the user or crash the program that opened the malicious document.

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Solution

Upgrade
Apple has addressed this issue in Security Update 2006-004. Refer to Apple’s Security Update site for more information.

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Do not Open Untrusted Links

Do not open or follow untrusted hyperlinks. Refer to the National Cyber Security Alliance’s document “Stay Safe Online” for more information on opening unknown hyperlinks.

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Vendor Information

566132

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Apple Computer, Inc. __ Affected

Notified: August 02, 2006 Updated: August 02, 2006

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

Refer to Apple Security Update 2006-004 for more details on this vulnerability.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23566132 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://secunia.com/advisories/21253/&gt;
• <http://docs.info.apple.com/article.html?artnum=304063&gt;

Acknowledgements

Thanks to Apple Product Security for reporting this vulnerability. Apple in turn thanks Jesse Ruderman of the Mozilla Corporation.

This document was written by Ryan Giobbi.

Other Information

CVE IDs:	CVE-2006-3505
Severity Metric:	1.64 Date Public: