Cyrus POP3 long line problem

Bron Gondwana brong at fastmail.fm
Sat Jun 14 09:12:47 EDT 2014


On Sat, Jun 14, 2014, at 04:40 PM, Vincent Fox wrote:
> Hi,
> 
> I have recently noticed that certain malformed messages hang POP3 clients.
> The pattern is that the mesages all have obscenely long last lines. I 
> can see it
> when I set up debug log dir for the account, that the download of the 
> message
> proceeds fine up until 2048th character and then stops.
> 
> At this point pop3d daemon goes to sleep and eventually exits.
> 
> IMAP has no problem with same message.
> 
> We are using a pretty ancient version of Cyrus here, v2.3.8 with a few 
> patches.
> 
> Anyone seen this before and can lend advice to fixes?  Management doesn't
> want to throw manhours into updating Cyrus at this time unfortunately so any
> quick fixes short of that would be welcome.

Probably still exists in current.  It's an odd little function.  Do you have a testcase
you're willing to share?  Otherwise I can make one of my own.

Bron.

-- 
  Bron Gondwana
  brong at fastmail.fm


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