COMMAND

    xconsole(1)

SYSTEMS AFFECTED

    Ultrix systems with X11 libs installed yet lacking a /dev/xcons.

PROBLEM

    /usr/lib/X11/xconsole can be  used to destructively  overwrite any
    file on  the system.  To duplicate  set the  display to  a working
    server, create a symbolic link from /tmp/Xconsole.log to the  file
    to  be  overwritten,  and  run  xconsole.  The target file will be
    overwritten  with  a  single  line  error  message  concerning   a
    nonexistant /dev/xcons.

SOLUTION

    I  belive  the  problem  can  be  eliminated  by  creating ar root
    read-writeable touchfile as /dev/xcons.