Re: exmh-2.7.0 working OK for you?

Brent Welch <[email protected]>
Newsgroups gmane.mail.exmh.devel
Message-ID <[email protected]>
The FixupEncoding procedure uses mimencode to generate the
quoted printable encoding.  That is a small subset of the metamail
functionality that we could replace with a Tcl implementation to
wean ourselves from metamail.  This use of minencode is very old,
and not new to 2.7

So, as a near term work-around you can eliminate all of metamail
from your systems, except the mimencode binary.  I don't know that
there are cert advisories for that application, are there?

>>>[email protected] said:
 > -----BEGIN PGP SIGNED MESSAGE-----
 > Hash: SHA1
 > 
 > Hi,
 > 
 > My Sedit users have lately struck a problem with 2.7.0. We decided 
recently
 > to disable metamail on our system due to the security vulnerability of
 > February:
 > 
 > http://www.securiteam.com/unixfocus/5UP0C2KC0W.html
 > 
 > We don't use metamail for message handling, so all was well until 
upgrading
 > to 2.7. However, now it appears that metamail is being used (for the 
first
 > time?) for Sedit "fixup encoding". Although I could turn this type of
 > function off completely, it probably means that hard returns will need to
 > be inserted by the user during edit (and, ugh, reformatting). I've also
 > tried to convert the unenlightened to vi/fmt but I'm sure you'll 
understand
 > the reaction to that!
 > 
 > Considering the response by Debian (Debian Security Advisory DSA 449-1)
 > to metamail was this:
 > 
 > 	"We have been devoting some effort to trying to avoid shipping
 > 	metamail in the future.  It became unmaintainable and these are
 > 	probably not the last of the vulnerabilities."
 > 
 > what prompted its integration into a fundamental part of message
 > composition - and can we back it out again? I'm not worried so much about
 > being exploited during message editing, but reenabling metamail means
 > trusting everyone to never, accidentally or otherwise, using the metamail
 > menu items within incoming messages. I'm extremely loath to treat the
 > reenabling of metamail as anything more than a stop-gap measure and am
 > thinking about how I can remove the right-click items if there is no 
other
 > solution.
 > 
 > cheers all,
 > - -- Joel Hatton --
 > Security Analyst                    | Hotline: +61 7 3365 4417
 > AusCERT - Australia's national CERT | Fax:     +61 7 3365 7031
 > The University of Queensland        | WWW:     www.auscert.org.au
 > Qld 4072 Australia                  | Email:   [email protected]
 > -----BEGIN PGP SIGNATURE-----
 > Comment: Exmh version 2.6.3 04/04/2003
 > 
 > iEYEARECAAYFAkEEVWoACgkQzecFBzFsCPZ93wCglid0f84Wow8vtp0yQoZmIDhs
 > PIIAoI8Vntu2rc2DH1XRq8bRbenTsxWE
 > =/Qpe
 > -----END PGP SIGNATURE-----
 > 
 > 
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 > Exmh-workers mailing list
 > [email protected]
 > https://www.redhat.com/mailman/listinfo/exmh-workers
 > 

--
Brent Welch
Software Architect, Panasas Inc
Delivering the premier storage system for scalable Linux clusters

www.panasas.com
[email protected]
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