ajm

This may be of interest to anyone running Groupshield 6...

This morning the CPU usage on our mail server went up to 100%, the offending process being RPCServ.exe and the problem persisted after a reboot.

Basically, to get straight to the point, I eventually tracked it down to an email a user had received containing an Excel attachment. Whenever he tried to open that email the processor load went up to 100%!

I stopped Groupshield, removed the email from his mailbox and restarted Groupshield and all was ok.

To test the theory I then emailed myself the offending file and sure enough 100% CPU again!!!

I copied the whole sheet to a fresh spreadsheet, same problem.

I copied/pasted the data into a fresh spreadsheet, no problem.

The 100% CPU utilisation appears to be a problem others have experienced (Google) and at the moment there seems to be no cure!

I am currently downgrading back to GPS 5.2 which will hopefully remove this vulnerability!

ajm

Update: Downgraded to 5.2 SP1, tried sending same suspect file, no problems!

ChrisB

I know of somebody else who won't go to GS 6 for the same reason AJM.