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Bug#521347: marked as done (openssh-server: X11 forwarding fails)



Your message dated Tue, 9 Jun 2009 13:05:40 -0400
with message-id <OF37F3AD18.11AC8D17-ON852575D0.005D7CE8-852575D0.005DE6ED@epamail.epa.gov>
and subject line invalid - client, not server problem
has caused the Debian Bug report #521347,
regarding openssh-server: X11 forwarding fails
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
521347: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=521347
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message ---
Package: openssh-server
Version: 1:5.1p1-5
Severity: normal


X11 forwarding from my openssh server has been working fine for years.
Now suddenly, it doesn't any more.  See the session log below.

I'm not sure what else to report, except that I see a recent, almost
identical report at
http://www.usenet-forums.com/openssh-development/411642-openssh_5-1-untrusted-x11-forwarding-ssh-x-no-longer-works.html .

Thanks,
Andrew.

$ ssh -vY helium emacs
OpenSSH_5.1p1 Debian-3ubuntu1, OpenSSL 0.9.8g 19 Oct 2007
debug1: Reading configuration data /home/andrex/.ssh/config
debug1: Applying options for helium
debug1: Applying options for *
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to 5200-glenwood.net [68.55.218.17] port 22.
debug1: Connection established.
debug1: identity file /home/andrex/.ssh/identity type -1
debug1: identity file /home/andrex/.ssh/id_rsa type -1
debug1: identity file /home/andrex/.ssh/id_dsa type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.1p1 Debian-5
debug1: match: OpenSSH_5.1p1 Debian-5 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.1p1 Debian-3ubuntu1
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-cbc hmac-md5 zlib@openssh.com
debug1: kex: client->server aes128-cbc hmac-md5 zlib@openssh.com
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host '5200-glenwood.net' is known and matches the RSA host key.
debug1: Found key in /home/andrex/.ssh/known_hosts:9
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering public key: Public Key
debug1: Server accepts key: pkalg ssh-rsa blen 277
debug1: Enabling compression at level 6.
debug1: Authentication succeeded (publickey).
debug1: Local connections to LOCALHOST:1080 forwarded to remote address socks:0
debug1: Local forwarding listening on 127.0.0.1 port 1080.
bind: Address already in use
debug1: Local forwarding listening on ::1 port 1080.
bind: Address already in use
channel_setup_fwd_listener: cannot listen to port: 1080
debug1: Local connections to LOCALHOST:14301 forwarded to remote address localhost:143
debug1: Local forwarding listening on 127.0.0.1 port 14301.
bind: Address already in use
debug1: Local forwarding listening on ::1 port 14301.
bind: Address already in use
channel_setup_fwd_listener: cannot listen to port: 14301
debug1: Local connections to LOCALHOST:2501 forwarded to remote address localhost:25
debug1: Local forwarding listening on 127.0.0.1 port 2501.
bind: Address already in use
debug1: Local forwarding listening on ::1 port 2501.
bind: Address already in use
channel_setup_fwd_listener: cannot listen to port: 2501
Could not request local forwarding.
debug1: channel 0: new [client-session]
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: No xauth program.
Warning: No xauth data; using fake authentication data for X11 forwarding.
debug1: Requesting X11 forwarding with authentication spoofing.
debug1: Sending environment.
debug1: Sending env LANG = en_US.UTF-8
debug1: Sending command: emacs
debug1: client_input_channel_open: ctype x11 rchan 2 win 65536 max 16384
debug1: client_request_x11: request from 127.0.0.1 50658
debug1: channel 1: new [x11]
debug1: confirm x11
Invalid MIT-MAGIC-COOKIE-1 key
Gtkdebug1: channel 1: free: x11, nchannels 2
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: client_input_channel_req: channel 0 rtype eow@openssh.com reply 0
-WARNING **: cannot open display: localhost:11.0
debug1: channel 0: free: client-session, nchannels 1
Transferred: sent 2400, received 2560 bytes, in 0.2 seconds
Bytes per second: sent 12342.2, received 13165.0
debug1: Exit status 1
debug1: compress outgoing: raw data 278, compressed 229, factor 0.82
debug1: compress incoming: raw data 369, compressed 273, factor 0.74

-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (990, 'testing'), (300, 'unstable'), (200, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.26 (SMP w/2 CPU cores; PREEMPT)
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)
Shell: /bin/sh linked to /bin/bash

Versions of packages openssh-server depends on:
ii  adduser              3.110               add and remove users and groups
ii  debconf [debconf-2.0 1.5.26              Debian configuration management sy
ii  dpkg                 1.14.25             Debian package management system
ii  libc6                2.9-4               GNU C Library: Shared libraries
ii  libcomerr2           1.41.3-1            common error description library
ii  libkrb53             1.6.dfsg.4~beta1-11 Transitional library package/krb4 
ii  libpam-modules       1.0.1-7             Pluggable Authentication Modules f
ii  libpam-runtime       1.0.1-7             Runtime support for the PAM librar
ii  libpam0g             1.0.1-7             Pluggable Authentication Modules l
ii  libselinux1          2.0.65-5            SELinux shared libraries
ii  libssl0.9.8          0.9.8g-15           SSL shared libraries
ii  libwrap0             7.6.q-16            Wietse Venema's TCP wrappers libra
ii  lsb-base             3.2-20              Linux Standard Base 3.2 init scrip
ii  openssh-blacklist    0.4.1               list of default blacklisted OpenSS
ii  openssh-client       1:5.1p1-5           secure shell client, an rlogin/rsh
ii  procps               1:3.2.7-11          /proc file system utilities
ii  zlib1g               1:1.2.3.3.dfsg-12   compression library - runtime

Versions of packages openssh-server recommends:
ii  openssh-blacklist-extra       0.4.1      list of non-default blacklisted Op
ii  xauth                         1:1.0.3-2  X authentication utility

Versions of packages openssh-server suggests:
pn  molly-guard                   <none>     (no description available)
pn  rssh                          <none>     (no description available)
pn  ssh-askpass                   <none>     (no description available)

-- debconf information:
  ssh/insecure_rshd:
  ssh/vulnerable_host_keys:
  ssh/insecure_telnetd:
  ssh/new_config: true
* ssh/use_old_init_script: true
* ssh/disable_cr_auth: true
  ssh/encrypted_host_key_but_no_keygen:



--- End Message ---
--- Begin Message ---
I'm sorry, this problem wasn't caused by a bug in the server at all.  It
was caused by a misconfiguration of openssh-client in Ubuntu:
https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/358612 .

Closing now.  Sorry for the noise.

Andrew.



--- End Message ---

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