Apple Help Viewer vulnerable to buffer overflow

Overview

A vulnerability in the way Apple Help Viewer handles specially crafted URLs may allow an attacker to execute arbitrary code or cause a denial of service.

Description

According to Apple Security Update 2008-003:

_ An integer underflow in Help Viewer’s handling of help:topic URLs may result in a buffer overflow. Accessing a malicious help:topic URL may lead to an unexpected application termination or arbitrary code execution._
Note that this issue affects systems running Mac OS X prior to version 10.5.

Impact

A remote, unauthenticated attacker may be able to execute arbitrary code or cause a denial of service.

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Solution

Apply Update
This issue is addressed in Apple Security Update 2008-003. An update for Mac OS X is available on Apple Downloads and via Software Update.

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Vendor Information

566875

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Apple Computer, Inc. __ Affected

Updated: May 29, 2008

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 2008-003 for more information.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23566875 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

<http://lists.apple.com/archives/security-announce/2008/May/msg00001.html&gt;

Acknowledgements

This issue was reported in Apple Security Update 2008-003. Apple credits Paul Haddad of PTH with reporting this issue.

This document was written by Chris Taschner.

Other Information

CVE IDs:	CVE-2008-1034
Severity Metric:	8.68 Date Public: