Nick Couchman commented on GUACAMOLE-681:

Ah, that makes sense.  So, I would say that the bug referenced in this 
particular issue is already fixed, at least in the master branch.  I already 
cannot remember which versions I tested against, so I don't know if it's fixed 
in the staging/1.0.0 branch.

> Color palette OSC sequence crashing SSH
> ---------------------------------------
>                 Key: GUACAMOLE-681
>                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-681
>             Project: Guacamole
>          Issue Type: Bug
>          Components: SSH
>    Affects Versions: 0.9.14
>         Environment: Newest docker versions of guacd and guacamole, running 
> on Unraid. Client is connecting from Chromium on Arch Linux.
>            Reporter: Patrick Collins
>            Priority: Critical
> Based on 
> [this|https://issues.apache.org/jira/projects/GUACAMOLE/issues/GUACAMOLE-277] 
> issue, it seems Guacamole is supposed to work with Linux console codes.
> I'm getting reliable crashes when printing certain console codes in a 
> Guacamole SSH session; notably ones printed by .bashrc in [some 
> configurations|https://github.com/dylanaraps/pywal].
> When printed directly on the device, (whether on a tty or a terminal 
> emulator,) the codes work.
> When printed in Guacamole, they immediately crash the session; prompting 
> reconnection.
> This command is enough to crash the session:
> {code:java}
> echo 1b5d343b0a | xxd -r -p{code}
> (It converts some hex to 'ESC []4;' and prints it.)
> Apologies if the priority of this issue is inappropriate; I based it off the 
> "crashes" criterion; but I'm not certain to what extent the program has to 
> crash to qualify.

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