Microsoft Download Center Archive
 | Update for the IDirectPlay4 API of Microsoft for DirectX 9.0x (DirectPlay) (KB839643) |
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.
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Files
 | Status: DeletedThis 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 August 2020. |
| File | Size |
|---|---|
 DirectX90-KB839643-x86-ENU.EXESHA1: ed1fc697f95aa71dfd7773edb3bebc77030e08df | 428 KB |
System Requirements
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, Windows Server 2003, Windows XP, Windows XP Home Edition, Windows XP Media Center Edition, Windows XP Professional Edition, Windows XP Service Pack 1
- Requires DirectX 9.0, DirectX 9.0a, or DirectX 9.0b to be installed.
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