Vulnerability Note VU#627331

Microsoft Office PowerPoint code execution vulnerability

Original Release date: 03 Apr 2009 | Last revised: 03 Apr 2009

Overview

Microsoft PowerPoint contains a vulnerability. If exploited, this vulnerability could allow an attacker to execute code.

Description

Microsoft Powerpoint is a component of Microsoft Office. Per Microsoft Security Advisory 969136:

    The vulnerability is caused when Microsoft Office PowerPoint accesses an invalid object in memory when parsing a specially crafted PowerPoint file. This creates a condition that allows the attacker to execute arbitrary code.


The advisory also states that Microsoft Office 2000, Microsoft Office XP, Microsoft Office 2003, and Microsoft Office 2004 for Mac are affected.

Impact

A remote attacker may be able to execute code with the privileges of the user running PowerPoint.

Solution

We are currently unaware of solution to this problem. Until updates are available, users are encouraged to use the below workarounds.


Do not open untrusted PowerPoint documents

Do not open unfamiliar or unexpected PowerPoint or other Office documents, particularly those hosted on web sites or delivered as email attachments.


Do not rely on file name extension filtering

In most cases, Windows will call PowerPoint to open a document even if the document has an unknown file extension. For example, if presentation.qwer contains the correct file header information, Windows will open presentation.qwer with PowerPoint. Filtering for common extensions (e.g., .ppt, .pot, and .pps) will not detect all PowerPoint documents. Additionally, a PowerPoint file with no file extension will also open with the PowerPoint application.

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Microsoft CorporationAffected-03 Apr 2009
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

Information from Microsoft Security Advisory 969136 was used in this report.

This document was written by Ryan Giobbi.

Other Information

  • CVE IDs: CVE-2009-0556
  • Date Public: 02 Apr 2009
  • Date First Published: 03 Apr 2009
  • Date Last Updated: 03 Apr 2009
  • Severity Metric: 9.28
  • Document Revision: 11

Feedback

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