openssh bugs - Oct 2008 - [Bug 1531] New: sftp disconnect when talking to ws_ftp server 6.1.1

https://bugzilla.mindrot.org/show_bug.cgi?id=1531

           Summary: sftp disconnect when talking to ws_ftp server 6.1.1
           Product: Portable OpenSSH
           Version: 5.1p1
          Platform: Sparc
        OS/Version: Solaris
            Status: NEW
          Severity: normal
          Priority: P2
         Component: sftp
        AssignedTo: unassigned-bugs at mindrot.org
        ReportedBy: jwhite at datacenterinc.com


Am receiving a disconnect message from sftp when conversing with ws_ftp
server 6.1.1. Have downloaded and installed "newest" openssh5.1p1. No
success.

Tried with OpenSSH 5.0p1 and sftp does not receive disconnect message
when connecting to ws_ftp 6.1.1 server. Also, used version of OpenSSH
that comes with Solaris 10 install and succeeded in connecting to
ws_ftp 6.1.1 server.

Have I run into a bug? Any comments or suggestions are welcome. Thank
you.

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Darren Tucker <dtucker at zip.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |dtucker at zip.com.au




--- Comment #1 from Darren Tucker <dtucker at zip.com.au>  2008-10-16
12:33:08 ---
Could you please attach the debug output from the client (ie "sftp -vvv
yourserver").  (Please use "Add an atachment" rather than pasting
into
the comment field.)

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--- Comment #2 from Jeff White <jwhite at datacenterinc.com>  2008-10-17
00:26:52 ---
Created an attachment (id=1575)
 --> (http://bugzilla.mindrot.org/attachment.cgi?id=1575)
Requested debug file

Thanks for your time looking at this. Have a good day.

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--- Comment #3 from Darren Tucker <dtucker at zip.com.au>  2008-10-17
11:00:22 ---
Created an attachment (id=1576)
 --> (http://bugzilla.mindrot.org/attachment.cgi?id=1576)
Only send no-more-sessions and eow extension messages to OpenSSH
servers.

OK, that looks like it's choking on the no-more-sessions message.

If that's the case it means that the server is buggy (the spec says
it's supposed to messages it doesn't understand with a failure
message).

There has been code added to OpenBSD's OpenSSH which works around this,
but the code has not yet been synced to the Portable development
version.

This change is in the attached patch, please apply it to a clean
openssh-5.1p1 tree and see if it resolves your problem.

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--- Comment #4 from Jeff White <jwhite at datacenterinc.com>  2008-10-18
03:42:02 ---
The patches you sent me work when added to my openssh 5.1p1 tree. Thank
you so much. I have no problem connecting to ws_ftp server 6.1.1 now.
It appears that ssh connects as required as well. Again, thanks.

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
                 CC|                            |djm at mindrot.org
             Blocks|                            |1481




--- Comment #5 from Damien Miller <djm at mindrot.org>  2008-12-08
09:55:51 ---
Patch has been synced to portable and will be in openssh-5.2. Thanks.

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Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED




--- Comment #6 from Damien Miller <djm at mindrot.org>  2009-02-23
13:36:32 ---
Close bugs fixed/reviewed for openssh-5.2 release

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