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Posted to commits@guacamole.apache.org by "Michael Jumper (JIRA)" <ji...@apache.org> on 2017/05/19 21:03:04 UTC

[jira] [Created] (GUACAMOLE-306) VNC may segfault if keys are pressed while not yet connected

Michael Jumper created GUACAMOLE-306:
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             Summary: VNC may segfault if keys are pressed while not yet connected
                 Key: GUACAMOLE-306
                 URL: https://issues.apache.org/jira/browse/GUACAMOLE-306
             Project: Guacamole
          Issue Type: Bug
          Components: VNC
            Reporter: Michael Jumper
            Priority: Critical


Guacamole's VNC implementation assumes that the {{rfbClient}} object will be available at the time that keyboard or mouse events occur, but this is not guaranteed. That object will only be available once the VNC connection process has completed.

Thus, if keys are pressed while the connection is not yet ready, the event handler tries to send a key event to {{NULL}}, a segfault occurs, and the Guacamole connection closes.



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