Microsoft Download Center Archive

Update for the IDirectPlay4 API of Microsoft for DirectX 9.0x (DirectPlay) (KB839643)

  • Published:
  • Version: 1
  • Category: Security Patch
  • Language: English

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.

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.

Knowledge Base Articles:

Files

Status: Deleted

This download is no longer available on microsoft.com. The downloads below are archives provided by the Internet Archive Wayback Machine from the Microsoft Download Center prior to April 2023.

Files
DirectX90-KB839643-x86-ENU.EXE
  • SHA1: ed1fc697f95aa71dfd7773edb3bebc77030e08df
  • Size: 427 KB

File sizes and hashes are retrieved from the Wayback Machine’s indexes. They may not match the latest versions of files hosted on Microsoft servers.

System Requirements

Operating Systems: Windows 2000, Windows XP Service Pack 1, Windows 2000 Service Pack 4, Windows Server 2003, Windows XP, Windows 2000 Service Pack 3, Windows XP Home Edition, Windows XP Media Center Edition, Windows XP Professional Edition, Windows 2000 Advanced Server, Windows 2000 Server, Windows 2000 Service Pack 2

Requires DirectX 9.0, DirectX 9.0a, or DirectX 9.0b to be installed.

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