If you have a use case which requires the guest session, you can manually re-enable it by writing the following contents to /etc/lightdm/lightdm.conf:
# Manually enable guest sessions despite them not being confined # IMPORTANT: Makes the system vulnerable to CVE-2017-8900 # https://bugs.launchpad.net/bugs/1663157 [Seat:*] allow-guest=true -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1663157 Title: Guest session processes are not confined in 16.10 and newer releases To manage notifications about this bug go to: https://bugs.launchpad.net/lightdm/+bug/1663157/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
