OpenSSH 7.7p1 interop failure with Twisted Conch 8.0.0-17.9.0

[Damien Miller]

On Sat, 14 Apr 2018, Colin Watson wrote:

> This isn't an OpenSSH bug, but just in case anyone else is ambitious
> enough to automatically run interoperability tests against other SSH
> implementations, here's a heads-up:
> 
>   https://twistedmatrix.com/trac/ticket/9422
> 
> TL;DR: commit 7c856857607112a3dfe6414696bf4c7ab7fb0cb3 caused there to
> be an SSH_MSG_DEBUG message sent where there wasn't one before, which
> tripped over an implementation bug in Twisted.  I'm guessing slightly at
> the affected version range based on git history.

Thanks for letting is know - we could set SSH_BUG_DEBUG to disable debug
messages for the affected versions if they are readily identifiable
from their version strings. What do you think?

-d