[Bug 1905085] Re: Error when I type sudo in the terminal.Also I get an error when I am requested to authentycate do not show the line for the password and instead shows an error message

[Sebastien Bacher]

Thank you for taking the time to report this issue and helping to make
Ubuntu better. Examining the information you have given us, this does
not appear to be a bug report so we are closing it and converting it to
a question in the support tracker. We understand the difficulties you
are facing, but it is better to raise problems you are having in the
support tracker at https://answers.launchpad.net/ubuntu if you are
uncertain if they are bugs. You can also find help with your problem in
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** Package changed: evince (Ubuntu) => sudo (Ubuntu)

** Changed in: sudo (Ubuntu)
   Importance: Undecided => Low

** Changed in: sudo (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1905085

Title:
  Error when I type sudo in the terminal.Also I get an error when I am
  requested to authentycate do not show the line for the password and
  instead shows an error message

Status in sudo package in Ubuntu:
  Invalid

Bug description:
  mt at mt-MS-7728:/usr/lib/sudo$ sudo chmod -R u=rw sudoers.so
  sudo: error in /etc/sudo.conf, line 0 while loading plugin "sudoers_policy"
  sudo: /usr/lib/sudo/sudoers.so must be only be writable by owner
  sudo: fatal error, unable to load plugins
  mt at mt-MS-7728:/usr/lib/sudo$  chmod -R u=rw sudoers.so
  chmod: changing permissions of 'sudoers.so': Operation not permitted
  mt at mt-MS-7728:/usr/lib/sudo$ pkexec chmod go-w /usr/lib/sudo/sudoers.so
  Error executing command as another user: Request dismissed
  mt at mt-MS-7728:/usr/lib/sudo$  mount -o remount,rw /
  mount: only root can use "--options" option
  mt at mt-MS-7728:/usr/lib/sudo$ mount --options remount,rw /
  mount: only root can use "--options" option
  mt at mt-MS-7728:/usr/lib/sudo$  chmod 644 /usr/lib/sudo/sudoers.so
  chmod: changing permissions of '/usr/lib/sudo/sudoers.so': Operation not permitted
  mt at mt-MS-7728:/usr/lib/sudo$ chown root:root /usr/lib/sudo/sudoers.so
  chown: changing ownership of '/usr/lib/sudo/sudoers.so': Operation not permitted
  mt at mt-MS-7728:/usr/lib/sudo$ cd ..
  mt at mt-MS-7728:/usr/lib$ cd policykit-1
  mt at mt-MS-7728:/usr/lib/policykit-1$ ls -l
  total 32
  -rwxrwxrwx 1 root root 14328 mar 27  2019 polkit-agent-helper-1
  -rwxrwxrwx 1 root root 14552 mar 27  2019 polkitd
  mt at mt-MS-7728:/usr/lib/policykit-1$ sudo chmod -R u=rw polkit-agent-helper-1
  sudo: error in /etc/sudo.conf, line 0 while loading plugin "sudoers_policy"
  sudo: /usr/lib/sudo/sudoers.so must be only be writable by owner
  sudo: fatal error, unable to load plugins
  mt at mt-MS-7728:/usr/lib/policykit-1$  chmod -R u=rw polkit-agent-helper-1
  chmod: changing permissions of 'polkit-agent-helper-1': Operation not permitted
  mt at mt-MS-7728:/usr/lib/policykit-1$ 
  Ubuntu 18.04.5 LTSmt at mt-MS-7728:/$ xprop WM_CLASS
  WM_CLASS(STRING) = "gnome-terminal-server", "Gnome-terminal"
  mt at mt-MS-7728:/$ locate -b  "\gnome-terminal-server"
  /usr/lib/gnome-terminal/gnome-terminal-server
  mt at mt-MS-7728:/

  I expected it to work normal giving me root access to the commands.

  It gave me an error message that says"sudoers.so"must be writeable
  only by the user and actually it is set up to be read and write for
  all,that was my mistake when I ran a chmod 777 for the whole lib
  directory since then sudo does not work and now when I try to chmod
  without sudo it says,permission denied and when I try with sudo it
  gives me the error,so it is a circle I can not get out of.Another
  problem I have,probably,from the same origin,is the authentication
  label that do not show the line where the password should be inserted
  and instead it shows an error message that says something about the
  /usr/lib/policykit being restored to its original state.Well this is
  all I have to say ,for the moment. Thanks.Please see if you can help
  me.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: evince 3.28.4-0ubuntu1.2
  ProcVersionSignature: Ubuntu 5.4.0-54.60~18.04.1-generic 5.4.65
  Uname: Linux 5.4.0-54-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.20
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Nov 20 20:48:22 2020
  InstallationDate: Installed on 2020-11-16 (4 days ago)
  InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  SourcePackage: evince
  UpgradeStatus: No upgrade log present (probably fresh install)

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