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  1. Guacamole
  2. GUACAMOLE-681

Color palette OSC sequence crashing SSH

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Critical
    • Resolution: Invalid
    • Affects Version/s: 0.9.14
    • Fix Version/s: None
    • Component/s: SSH
    • Labels:
      None
    • Environment:
      Newest docker versions of guacd and guacamole, running on Unraid. Client is connecting from Chromium on Arch Linux.

      Description

      Based on this 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.

      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:

      echo 1b5d343b0a | xxd -r -p

      (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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              • Assignee:
                Unassigned
                Reporter:
                Patricol Patrick Collins
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                Dates

                • Created:
                  Updated:
                  Resolved: