XWEB: OWA Add-in Component for IIS May Cause Heap Corruption (184841)
The information in this article applies to:
- Microsoft Outlook Web Access 5.5
- Microsoft Exchange Server 5.5
This article was previously published under Q184841 SYMPTOMS
When you try to access an Exchange Server version 5.5 computer using
Outlook Web Access (OWA), you may see some of the following symptoms:
- The Internet browser hangs.
- The Internet browser returns an ASP 0115 error.
- An Event ID of 5 is logged to the application event log on the Internet
Information Server (IIS) computer. Note that the server is still
available, but the ASP page for the Outlook Web Access (OWA) client is
unresponsive.
NOTE: This problem may be seen in any environment. It may appear to be more
prevalent on servers that support more concurrent users, depending on
server memory configuration, but the problem is not dependent on server
utilization or the amount of memory allocated to the service.
CAUSE
When the Deleted Items folder is emptied, a buffer is created that is too
small in some circumstances. This causes the end of the buffer to be
overwritten by data, causing corruption of the memory that follows.
STATUS
Microsoft has confirmed this to be a problem in Microsoft Outlook Web
Access version 5.5.
This problem has been corrected in the latest U.S. Service Pack for
Microsoft Exchange Server version 5.5. For information about obtaining the
Service Pack, query on the following word in the Microsoft Knowledge Base
(without the spaces):
MORE INFORMATION
A common problem in application development can be heap corruption. This
typically occurs when an application allocates a block of heap memory of a
given size and then writes to memory addresses beyond the requested size of
the heap block. Another common cause of heap corruption is writing to a
block of memory that has already been used.
| Modification Type: | Minor | Last Reviewed: | 9/23/2005 |
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| Keywords: | kbHotfixServer kbQFE kbbug kbfix kbQFE kbusage KB184841 |
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