[Bug 2743] New: ssh with -T hangs putty

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=2743

            Bug ID: 2743
           Summary: ssh with -T hangs putty
           Product: Portable OpenSSH
           Version: 7.5p1
          Hardware: Other
                OS: Other
            Status: NEW
          Severity: major
          Priority: P5
         Component: sshd
          Assignee: unassigned-bugs at mindrot.org
          Reporter: bagajjal at microsoft.com

Created attachment 3014
  --> https://bugzilla.mindrot.org/attachment.cgi?id=3014&action=edit
putty logs

Hi,

I am trying to run a putty SSH session with -T option, the terminal
gets stuck, doesn't honor any user keys and hangs.

Steps-
1) open command prompt in windows 
2) "C:\Program Files (x86)\PuTTY\putty.exe" -ssh user at ip -T
3) in the pop-up putty window, enable the logging and write to a file..
4) Now if you press any key, the key is sent to the server but server
didn't acknowledge anything back.

I am attaching the putty logs that captures ssh packets and raw data
packets.
In the putty log, Line 335 shows "T" is been sent to SSH server but
there is no incoming packet from the SSH server..

Please let me know if you need more information.

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