Re: [hylafax-users] attached mail delivery fails on truncated MIME

["Josh Welch" <jwelch@buffalowildwings.com>]

This is sendmail protecting itself against a possible buffer overflow
attack. The behavior in recent versions of sendmail is to truncate MIME
headers greater than 256 characters. I have not been having a problem with
this on my system and I am running Sendmail 8.11.4 and delivereing in PDF
format. Did you make any modifications to the faxrcvd or faxrcvd-mail
scripts? I am not sure why this is occurring, I would probably check out the
Sendmail newsgroup.

----- Original Message -----
From: "Jeroen de Zwart" <Jeroen.deZwart@YAMAHA-MOTOR.NL>
To: <hylafax-users@hylafax.org>
Sent: Wednesday, June 20, 2001 3:42 AM
Subject: [hylafax-users] attached mail delivery fails on truncated MIME


> Hi there,
>
> I keep running into one problem with my hylafax server.
> Trying to have the system send the received faxes to an email address in
pdf
> (or tiff) I get:
>
> Jun 19 16:40:25 laptop01 sendmail[2971]: f5JEbxS02959: Truncated MIME
> Content-Type header due to field size (length = 31) (possible attack)
> Jun 19 16:40:25 laptop01 sendmail[2971]: f5JEbxS02959: Truncated MIME
> Content-Disposition header due to field size (length = 35) (possible
attack)
> Jun 19 16:40:25 laptop01 sendmail[2971]: f5JEbxS02959:
> to=Jeroen.deZwart@yamaha-motor.nl, ctladdr=fax (33/14), delay=00:02:26,
> xdelay=00:00:00, mailer=relay, pri=120964, relay=10.63.18.16
[10.63.18.16],
> dsn=2.0.0, stat=Sent (OK)
> Jun 20 09:14:23 laptop01 sendmail[389]: starting daemon (8.11.2):
> SMTP+queueing@00:05:00
>
> So I do receive the emails but apparently sendmail doesn't like whats in
the
> faxrcvd-mail script.
>
> Does anyone have the same experience and/or solution?
> Its somewhat keeping me from implementing this so any help is greatly
> appreciated.
>
> (running SuSE 7.1 /kernel 2.2.18/ sendmail 8.11.2)
>
> TIA
>
> JdZ
>
>
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