Update for the IDirectPlay4 API of Microsoft DirectX 8.1x (DirectPlay) (KB839643)
Brief Description
Vulnerability in the IDirectPlay4 API Could Allow Denial of Service
An attacker can send a malformed packet to anyone running the IDirectPlay4 API for Microsoft DirectPlay and cause it to crash.
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Quick Details
| File Name: | DirectX81-KB839643-x86-ENU.EXE |
| Version: | 8.1 |
| Knowledge Base (KB) Articles: | KB839643 |
| Date Published: | 6/7/2004 |
| Language: | English |
| Download Size: | 439 KB |
| Estimated Download Time: | 1 min 56K |
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Overview
A denial of service vulnerability exists in the implementation of the IDirectPlay4 API of Microsoft DirectPlay due to a lack of robust packet validation.
If a user is running a networked DirectPlay application, an attacker who successfully exploited this vulnerability could cause the DirectPlay application fail. The application would need to be restarted in order to resume functionality. 
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System Requirements
- Supported Operating Systems: Windows 2000; Windows 2000 Advanced Server; Windows 2000 Server; Windows 2000 Service Pack 2; Windows 2000 Service Pack 3; Windows 2000 Service Pack 4
Requires DirectX 8.1. DirectX8.1a, or DirectX 8.1b to be installed. Top of page
Instructions
- Click the Download button on this page to start the download, or choose a different language from the drop-down list and click Go.
- Do one of the following:
- To start the installation immediately, click Open or Run this program from its current location.
- To copy the download to your computer for installation at a later time, click Save or Save this program to disk.
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