post last sendmail upgrade
Mark.Andrews at isc.org
Mark.Andrews at isc.org
Wed Apr 16 21:00:26 PDT 2003
> On Thu, Apr 17, 2003, Mark.Andrews at isc.org wrote:
> >
> > I've noticed email corruption post the last upgrade to sendmail
> > committed to stable. Is anyone else experiencing this?
>
> What kind of corruption?
I've had the tail of the body set to 0x80's. Most common
failure mode.
I've had a message (S-P1-P2-E) appear as (S-P2 P1-E),
the chunk P1-P2 appears twice.
> You may want to follow the advise in the last sentence:
>
> To provide partial protection for internal, unpatched MTAs that may be
> performing 7->8 or 8->7 bit MIME conversions, the default
> for MaxMimeHeaderLength has been changed to 2048/1024.
> Note: this does have a performance impact, and it only
> protects against frontal attacks from the outside.
> To disable the checks and return to pre-8.12.9 defaults,
> set MaxMimeHeaderLength to -1/-1.
>
> It seems that the MaxMimeHeaderLength checks remove '\0' under
> certain circumstances.
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--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark.Andrews at isc.org
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