XADM: Store Crashes When Message Is Downloaded via POP3

• Microsoft Exchange Server, version 5.0

SYMPTOMS

During normal operation, when a message is being downloaded via POP3, the Microsoft Exchange information store may terminate unexpectedly with an access violation. If the correct Windows NT and Exchange Server debug symbols are installed, the resulting Dr. Watson log may have a stack dump similar to the following:

   FramePtr  RetAddr   Param1   Param2   Param3   Function Name
   1438fcf4  00473eb6  00000000 0128cd6c 00000400 STORE!Cmnode::lpstrName
   1438fd08  0047da5b  0128cd6c 0127b734 00000400
    STORE!CmcvtrHdr::hrEmit+0x86
   1438fd30  0047daed  01278f8c 00000400 1438fde0
    STORE!CINETemtr::hrEmit+0xab
   1438fd54  0047d950  01278f8c 00000400 1438fde0
    STORE!CINETemtr::hrEmit+0x13d
   1438fd94  0047d84c  14adc1d4 01278f8c 00000400
    STORE!CConvertStream::Read+0xf0
   1438fdb8  005dd576  00000400 01278f8c 1438fde0
    STORE!EcReadStreamOp+0x7c
   1438fe8c  005dd34e  00000001 67750000 ffffffff
    STORE!POP3CON::EcRenderMessage+0x1c6({...})
   1438feb4  005dac10  00000001 67750000 ffffffff
    STORE!POP3CON::EcSendMessage+0x4e({...})
   1438fed4  005dc00b  00000001 77f05ef9 0062d167
    STORE!POP3CON::EcRetr+0xa0
   1438fef4  005dc561  00000004 00000001 0127b18c
    STORE!POP3CON::OnTransactionCmd+0xfb
   1438ff1c  6d044f27  01274714 00000008 11ebaa24
    STORE!POP3CON::CbCommand+0x171
   1438ff48  6d045118  0127685c 11ebaa14 1438ffec
    NETIF!IFCONN::ProcessReceiveBuffer+0x237
   1438ff68  6d0457b7  00000000 11ebaa14 00000008
    NETIF!IFCONN::OnReceiveComplete+0x178
   1438ff88  6da02691  012753cc 00000008 00000000
    NETIF!NetIfCompletionRoutine+0xb7
   1438ffb8  77f04f2c  00000000 6d0440cc 0f6dfe60
    ISATQ!AtqPoolThread+0x1c1
   1438ffec  00000000  6da024d0 00000000 00000000
    KERNEL32!BaseThreadStart+0x51 

CAUSE

A message containing an "x-user-defined" MIME character set with a code page value of "50000" is being improperly handled by the information store. The code page value of 50000 is not recognized by the store and, as a result, causes an access violation.

RESOLUTION

A supported fix that corrects this problem is now available from Microsoft, but has not been fully regression-tested and should be applied only to systems experiencing this specific problem. If you are not severely affected by this specific problem, Microsoft recommends that you wait for the next Microsoft Exchange Server version 5.0 service pack that contains this fix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://www.microsoft.com/support/supportnet/overview/overview.asp

   Component: Information Store

   File Name    Version
   ------------------------
   Store.exe    5.0.1461.61
   Mdbmsg.dll   5.0.1461.61 

STATUS

Additional query words:

Keywords : XADM
Version : 5.0
Platform : winnt
Issue type : kbbug