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Q311967: Security Update

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Read Me First

This update resolves the "Unchecked buffer in the Multiple UNC Provider" security vulnerability in Windows NTŪ 4.0, and is discussed in Microsoft Security Bulletin MS02-017. Download now to prevent a malicious user from exploiting a buffer overflow vulnerability to either cause your computer to restart or to run unauthorized programs on your computer.

The vulnerability results because of a flaw in the Multiple UNC (uniform naming convention) Provider (MUP), which is a network file system resource locator that runs in kernel-mode memory in Windows. Due to an unchecked buffer (a temporary storage area of limited capacity), a malicious user can send a specially malformed request, and either cause the computer to restart or run programs as if he or she were the user.

For more information about this vulnerability, read Microsoft Security Bulletin MS02-017.

System Requirements
This update applies to Windows NT 4.0.

How to use
Restart your computer to complete the installation.

How to uninstall

  1. Click Start, point to Settings, and then click Control Panel.
  2. Click Add/Remove Programs.
  3. Select Windows NT 4.0 Hotfix [See Q312895 for more information], and then click Add/Remove.


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