7018615: IMAP via GWIA will allow very large draft messages to use up all available disk space

This document (7018615) is provided subject to the disclaimer at the end of this document.

Environment

Novell GroupWise 2014 R2 Support Pack 1

Novell GroupWise 2014 R2 Support Pack 1 Hot Patch 1

Novell GroupWise 2014 R2 Support Pack 1 Hot Patch 2

Situation

Summary: IMAP client “save as draft” circumvents file sizelimits and can cause the host File System to fill upcompletely.
Steps to duplicate:
Set up Thunderbird mail client pointed to GWIA IMAPserver.
Compose a new message and add a 2GB or largerattachment.
Save the message as a draft.
/wpgate/gwia/000.prc/gwwork folder will show a file createdthat will grow to more than 2GB in size. The client may throwerrors and it seems that each time it does a new file is created inthe gwwork folder that will also grow to more than 2GB in size. This repeats until the disk if full.
Note: This doesn’t happen if the mail client isconfigured to store draft messages on local drives. Howeverthe default is to store drafts on the IMAP server. Thisleaves us in a vulnerable situation as a single user can bring downthe GWIA server by trying to email a copy of the latest MarvelAvengers movie.

Resolution

This has been resolved in the shipping GroupWise 2014 R2 SP2 and newer. The fix is also in shipping GroupWise 18 and newer

Disclaimer

This Support Knowledgebase provides a valuable tool for NetIQ/Novell/SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented “AS IS” WITHOUT WARRANTY OF ANY KIND.

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