Vulnerability Note VU#406236

Microsoft Publisher does not adequately validate Publisher documents

Original Release date: 12 Sep 2006 | Last revised: 15 Sep 2006

Overview

Microsoft Publisher does not adequately validate Publisher documents. This results in a buffer overflow vulnerability that could allow an attacker to execute arbitrary code with the privileges of the user running Publisher.

Description

Microsoft Publisher does not adequately validate strings within Publisher documents. Based on CT12-09-2006-2, the strings may be related to font information. The inadequate validation could allow a buffer overflow to occur. This vulnerability could be triggered when a user opens a specially crafted Publisher document.

Impact

By convincing a user to open a specially crafted Publisher document, a remote, unauthenticated attacker could execute arbitrary code with the privileges of the user running Publisher.

Solution

Apply Updates

Apply the appropriate updates (910729) referenced by Microsoft Security Bulletin MS06-054. Microsoft Knowledge Base Article 910729 describes known issues that may be caused by applying the updates. Specifically, updated versions of Publisher are no longer able to open Publisher 2.0 files.


Do not open untrusted documents

Do not open unfamiliar or unexpected Publisher or other Office documents, particularly those hosted on web sites or delivered as email attachments. Please see Cyber Security Tip ST04-010 for more information.

Do not rely on file name extension filtering

In most cases, Windows will call Publisher to open a document even if the document has an unknown file extension. For example, if document.qwer contains the correct file header information, Windows will open document.qwer with Publisher. Filtering for common extensions (e.g., .pub, .doc, .dot, .rtf) may not detect all Publisher documents.

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Microsoft CorporationAffected-12 Sep 2006
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A

References

Credit

This vulnerability was reported by Microsoft, who in turn credit Stuart Pearson of Computer Terrorism.

This document was written by Art Manion.

Other Information

  • CVE IDs: CVE-2006-0001
  • Date Public: 12 Sep 2006
  • Date First Published: 12 Sep 2006
  • Date Last Updated: 15 Sep 2006
  • Severity Metric: 7.34
  • Document Revision: 13

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