Microsoft Security Bulletin MS00-005

Patch Available for "Malformed RTF Control Word" Vulnerability

Originally Posted: January 17, 2000

Summary

Microsoft has released a patch that eliminates a security vulnerability in the Rich Text Format (RTF) reader that ships as part of Microsoft® Windows® 95 and 98, and Windows NT® 4.0. Under certain conditions, the vulnerability could be used to cause email programs to crash.

Frequently asked questions regarding this vulnerability can be found at http://www.microsoft.com/technet/security/bulletin/fq00-005.mspx

General Information

Issue

Patch Availability

More Information

Please see the following references for more information related to this issue.

Frequently Asked Questions: Microsoft Security Bulletin MS00-005, http://www.microsoft.com/technet/security/bulletin/fq00-005.mspx.
Microsoft Knowledge Base (KB) article 249973, Default RTF File Viewer Interrupts Normal Application Processing, http://support.microsoft.com/default.aspx?scid=kb;en-us;249973&sd=tech.
(Note: It may take 24 hours from the original posting of this bulletin for this KB article to be visible.)
Rich Text Format (RTF) Specification and Sample RTF Reader Program, Version 1.5, http://msdn2.microsoft.com/en-us/library/aa140295(office.10).aspx.
Microsoft Security web site.

Obtaining Support on this Issue

This is a fully supported patch. Information on contacting Microsoft Technical Support is available at http://support.microsoft.com/contactussupport/?ws=support.

Revisions

January 17, 2000: Bulletin Created.

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