Re: OpenSSH 7.8p1 drops SSH connection with "Broken Pipe" IMMEDIATELY after successful login

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Dear Ohad,

What virtualisation software are you using?

Kind regards,

Job


On Tue, Aug 28, 2018 at 9:36 PM, Ohad Frenkel <ohadfjunkbox@xxxxxxxxxxx> wrote:
> Hi.
>
> Environment:
>
>   *   OS: Antergos Linux (Fully updated daily) (Running as a guest on VM).
>   *   OpenSSH: 7.8p1
>
> Description:
> Immediately upon creating a successful SSH tunnel login, the connection is dropped with the "packet_write_wait: Connection to X.X.X.X port 22: Broken pipe" error.
>
> I've verified the issue is due to OpenSSH 7.8p1 in the following ways:
>
>   *   Use a different, older client (i.e. the Windows host machine's PuTTy client, which I haven't updated god-knows-when).
>   *   Downgrade the Antergos guest to OpenSSH 7.7p2
>
> Both these case produced a working SSH connection.
>
> Reproduce effort:
>
>   *   Upgrade SSH client to OpenSSH 7.8p1
>   *   Try to SSH into a server
>      *   Some options:
>      *   demo@xxxxxxxxxxxxxx (use "password" for password)
>      *   Git - any remote operation (i.e. pull, push, fetch, clone...)
>
> The expected behavior is a consistent SSH connection.
> The actual behavior is that immediately after the authentication is successful the connection is dropped with "packet_write_wait: Connection to X.X.X.X port 22: Broken pipe" error occurs, the connection is dropped (and no work can be done, e.g. clone/push to Git remote repo).
>
>
> ________________________________
> From: Ohad Frenkel <ohadfjunkbox@xxxxxxxxxxx>
> Sent: 28 August 2018 21:30
> To: openssh-unix-dev@xxxxxxxxxxx
> Subject: OpenSSH 7.8p1 drops SSH connection with "Broken Pipe" IMMEDIATELY after successful login
>
> Hi.
>
> Environment:
>
>   *   OS: Antergos Linux (Fully updated daily) (Running as a guest on VM).
>   *   OpenSSH: 7.8p1
>
> Description:
> Immediately upon creating a successful SSH tunnel login, the connection is dropped with the "packet_write_wait: Connection to X.X.X.X port 22: Broken pipe" error.
>
> I've verified the issue is due to OpenSSH 7.8p1 in the following ways:
>
>   *   Use a different, older client (i.e. the Windows host machine's PuTTy client, which I haven't updated god-knows-when).
>   *   Downgrade the Antergos guest to OpenSSH 7.7p2
>
> Both these case produced a working SSH connection.
>
> Reproduce effort:
>
>   *   Upgrade SSH client to OpenSSH 7.8p1
>   *   Try to SSH into a server
>      *   Some options:
>      *   demo@xxxxxxxxxxxxxx (use "password" for password)
>      *   Git - any remote operation (i.e. pull, push, fetch, clone...)
>
> The expected behavior is a consistent SSH connection.
> The actual behavior is that immediately after the authentication is successful the connection is dropped with "packet_write_wait: Connection to X.X.X.X port 22: Broken pipe" error occurs, the connection is dropped (and no work can be done, e.g. clone/push to Git remote repo).
> _______________________________________________
> openssh-unix-dev mailing list
> openssh-unix-dev@xxxxxxxxxxx
> https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
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