XADM: TNS Resolution Causes Buffer Overflow (157691)
The information in this article applies to:
- Microsoft Exchange Server 4.0
This article was previously published under Q157691 SYMPTOMS
Federal sites needing to use Tactical Name Service (TNS) instead of Domain
Name Service (DNS), will encounter the following issue. When Microsoft
Exchange looks to connect to another SMTP server, it queries the TNS for an
MX Record (SMTP address). If the address is present, everything works fine.
If the address is not present, the TNS server sends its own IP address. If
the Server hardware is an old UNIX computer, with a total input buffer of
200k, the Microsoft Exchange mail headers will cause a buffer overflow.
STATUS
Microsoft has confirmed this to be a problem in Microsoft Exchange Server
version 4.0. This problem was corrected in the latest Microsoft Exchange
Service Pack. For information on obtaining the Service Pack, query on the
following word in the Microsoft Knowledge Base (without the spaces):
Modification Type: | Minor | Last Reviewed: | 4/28/2005 |
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Keywords: | kbusage KB157691 |
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