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Re: Telnet vulnerability--shared library loading

daemon@ATHENA.MIT.EDU (daemon@ATHENA.MIT.EDU)
Sun Nov 12 11:09:31 1995

To: kerberos@MIT.EDU
Date: 12 Nov 1995 15:44:34 GMT
From: erik@vt.edu ()

Jamey Graham (jamey@phantom.scranton.com) wrote:
: Joel Maslak wrote:
: > 
: > Lorrie Wood (lorrie@mellers1.psych.berkeley.edu) wrote:
: > : >ftp://ftp.cymru.net/pub/linux/security/in.telnetd.gz
: > Where's the source for this?
: in.telnetd, telnet, etc. are all part of the Netkit-B package.  When I
: tried to compile these myself (as ELF using libc-5.0.9), I got a lot of
: errors since not everything was defined in the system headers (can't
: remember what ones, but there were about 5 and I had no idea what they

You are missing

TELOPT_ENVIRON
ENV_VAR
ENV_VALUE

These can be set to either

TELOPT_NEW_ENVIRON ( but this will break environment passing with your
 	current telnet.. I have to recompile my telnet because I went this option)
NEW_ENV_VAR
and NEW_ENV_VALUE


if you are less lazy than I was, then you can make both entries work the
same, I believe, by adding similar case states..  



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