/usr/share/apport/apport:AttributeError:/usr/share/apport/apport@447:parse_arguments:print_usage:_print_message

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding apport. This problem was most recently seen with package version 2.20.1-0ubuntu2.26, the problem page at https://errors.ubuntu.com/problem/c999939b4b2ced24aa71d85b0995a56bd3813a39 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.

[Brian Murray (brian-murray)]

Traceback (most recent call last):
  File "/usr/share/apport/apport", line 447, in <module>
    options = parse_arguments()
  File "/usr/share/apport/apport", line 393, in parse_arguments
    parser.print_usage()
  File "/usr/lib/python3.5/argparse.py", line 2362, in print_usage
    self._print_message(self.format_usage(), file)
  File "/usr/lib/python3.5/argparse.py", line 2373, in _print_message
    file.write(message)
AttributeError: 'NoneType' object has no attribute 'write'

This can happen if the path to the executable has a space in it e.g.:

bdmurray@clean-xenial-amd64:~$ /usr/bin/python3 /usr/share/apport/apport 14055 11 0 1 14055 /usr/lib/plexmediaserver/Plex Media Server
usage: apport [-h] [-p PID] [-s SIGNAL_NUMBER] [-c CORE_ULIMIT] [-d DUMP_MODE]
              [-P [GLOBAL_PID]] [-E [EXECUTABLE_PATH]]

Somehow apport needs to be modified to handle arguments where the executable path has a space in the name.

[Benjamin Drung (bdrung)]

Since the spaces in the command line arguments is addressed in the recent CVE fix, the remaining crash in case of invalid parameters is addressed in bug #1979211