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[bug-inetutils] Problems with telnetd in inetutils-1.9.4
From: |
Michael Brunnbauer |
Subject: |
[bug-inetutils] Problems with telnetd in inetutils-1.9.4 |
Date: |
Thu, 28 Apr 2016 18:17:56 +0200 |
User-agent: |
Mutt/1.6.0 (2016-04-01) |
hi all,
I recently upgraded a Linux system of a customer (Kernel 3.4.111) to
glibc-2.23, which caused inetd + telnetd from inetutils-1.9.1 to break:
inetd[24051]: cannot execute /usr/libexec/telnetd: Bad address
The inetd.conf entry for this is:
telnet stream tcp4 nowait root /usr/libexec/telnetd
Other services handled with inetd still seem to work fine. Recompiling inetd and
telnetd did not help. I upgraded to inetutils-1.9.4, which fixed this problem
but created another one:
telnet displays the banner and asks for a password without asking for a login.
If I enter a non-password, a failed login attempt for root is logged in the
system. The telnet option -K does not change anything. Using the old telnetd
binary with the new inetd works fine (the login is asked first).
The customer is doing automatic telnet logins from an app and these also fail
so I have reason to suspect that the problem lies in the new telnetd server and
not the telnet client.
I compared the call of /bin/login from the old and the new telnetd binary.
The command line is /bin/login -p -h <hostname> in both cases and the
environment is identical.
Is this a bug in telnetd?
cu,
brunni
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