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Windows NT 4.0 Security Patch: Malformed Request to RPC Endpoint Mapper can Cause RPC Service to Fail
Brief Description
This update resolves the "Malformed RPC Packet" security vulnerability in computers running Windows NT® 4.0. Download now to prevent a malicious user from launching a denial of service attack using the Remote Procedure Call (RPC) client.
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Quick Details
| File Name: | Q305399i.exe |
| Version: | Q305399 |
| Security Bulletins: | MS01-048 |
| Knowledge Base (KB) Articles: | KB305399 |
| Date Published: | 3/17/2003 |
| Language: | English |
| Download Size: | 457 KB |
| Estimated Download Time: | 2 min 56K |
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Overview
This update resolves the "Malformed RPC Packet" security vulnerability in computers running Windows NT® 4.0 and is discussed in Microsoft Security Bulletin MS01-048. Download now to prevent a malicious user from launching a denial of service attack using the Remote Procedure Call (RPC) client.
This vulnerability exists because there is an error in the way the endpoint mapper (used by the RPC service to determine which remote port to use) processes queries. If a malicious user sends a malformed RPC query to an affected Windows NT 4.0 computer, it can cause the server to stop responding to requests.
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System Requirements
- Supported Operating Systems: Windows NT
- Microsoft Windows NT4.0 Workstation
- Microsoft Windows NT 4.0 Server
- Microsoft Windows NT4.0 Server, Enterprise Edition
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Instructions
- Click the Download link 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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