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Microsoft Windows 2000 SMTP service vulnerable to DoS when processing message with corrupted time stamp

Vulnerability Note VU#155252

Original Release Date: 2003-07-15 | Last Revised: 2003-07-15

Overview

Some versions of Microsoft Windows 2000 feature an SMTP service for handling Internet email. A flaw in this SMTP service may result in a denial-of-service vulnerability.

Description

When a message with a corrupted time stamp is received by a vulnerable system, the SMTP service may stop responding or shut down unexpectedly. This issue may occur when the FILETIME attribute of the message is not valid.

According to Microsoft, this issue affects systems running Microsoft Windows 2000 Server with Service Pack 2 or Service Pack 3 installed and systems running Microsoft Exchange 2000 Server.

Impact

The SMTP service may stop responding or shut down unexpectedly, resulting in a denial of service.

Solution

Microsoft has included a patch for this issue in Windows 2000 Service Pack 4. For additional information, users are encouraged to review the following Microsoft Knowledge Base Articles:

330716 - Corrupted Inbound Message Causes the SMTP Service to Stop or to Shut Down Unexpectedly
260910 - How to Obtain the Latest Windows 2000 Service Pack

Vendor Information

155252
 
Affected   Unknown   Unaffected

Microsoft Corporation

Notified:  July 11, 2003 Updated:  July 14, 2003

Status

  Vulnerable

Vendor Statement

No statement is currently available from the vendor regarding this vulnerability.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

Microsoft has included a patch for this issue in Windows 2000 Service Pack 4. For additional information, users are encouraged to review the following Microsoft Knowledge Base Articles:


    330716 - Corrupted Inbound Message Causes the SMTP Service to Stop or to Shut Down Unexpectedly
    260910 - How to Obtain the Latest Windows 2000 Service Pack

    If you have feedback, comments, or additional information about this vulnerability, please send us email.


CVSS Metrics

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A

References

Acknowledgements

Thanks to Microsoft for reporting this vulnerability.

This document was written by Chad R Dougherty.

Other Information

CVE IDs: None
Severity Metric: 9.36
Date Public: 2003-07-02
Date First Published: 2003-07-15
Date Last Updated: 2003-07-15 17:09 UTC
Document Revision: 6

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