[Dovecot] [Fwd: Re: [Pine-info] "incomplete SecBuffer exceeds maximum buffer size" ?]

Stewart Dean sdean at bard.edu
Mon Apr 27 19:59:48 EEST 2009


Forgive me if I've been asleep at the switch on the SSL problem and it's 
already been figured out, but....could this be what the prob is?

-------- Original Message --------
Subject: 	Re: [Pine-info] "incomplete SecBuffer exceeds maximum buffer 
size" ?
Date: 	Mon, 27 Apr 2009 09:47:04 -0700 (PDT)
From: 	Steve Hubert <hubert at washington.edu>
Organization: 	Univ of Washington; UW Technology; Seattle
To: 	Pine Forum <pine-info at u.washington.edu>
References: 	<Pine.WNT.4.64.0904261823300.-1877079 at zuluone>



There is a feature called quell-ssl-largeblocks that addresses this. In 
alpine it is called "Prevent SSL Largeblocks". The help text in alpine 
says

                  FEATURE: Prevent SSL Largeblocks

PC-Alpine only.

This feature changes the behavior of fetching messages and
attachments so that the message data is fetched in chunks no larger
than 12K bytes. This works around a bug in Microsoft's SSL/TLS
support. Some versions of Microsoft SSL are not able to read
full-sized (16K) SSL/TLS packets. Some servers will send such packets
and this will cause PC-Alpine to crash with the error

          incomplete SecBuffer exceeds maximum buffer size

Microsoft is aware of the problem and has developed a hotfix for it,
it is discussed in article 300562 in the Microsoft Knowledge Base.



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-- 
==== Once upon a time, the Internet was a friendly, 
neighbors-helping-neighbors small town, and no one locked their doors. 
Now it's like an apartment in Bed-Stuy: you need three heavy duty 
pick-proof locks, one of those braces that goes from the lock to the 
floor, and bars on the windows.... ==== Stewart Dean, Unix System Admin, 
Bard College, New York 12504 sdean at bard.edu voice: 845-758-7475, fax: 
845-758-7035


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