- On systems that support both PAM and SIGINFO, the main sudo process will no longer forward SIGINFO to the command if the signal was generated from the keyboard. The command will have already received SIGINFO since it is part of the same process group so there's no need for sudo to forward it. This is consistent with the handling of SIGINT, SIGQUIT and SIGTSTP.
- If SUDOERS_SEARCH_FILTER in ldap.conf does not specify a value, the LDAP search expression used when looking up netgroups and non-Unix groups had a syntax error if a group plugin was not specified.
- sudo -U otheruser -l will now have an exit value of 0 even if otheruser has no sudo privileges. The exit value when a user attempts to lists their own privileges or when a command is specified is unchanged.
- Sudo 1.8.18 contained an incomplete fix for the matching of entries in the LDAP and SSSD backends when a sudoRunAsGroup is specified but no sudoRunAsUser is present in the sudoRole.
- The path that sudo uses to search for terminal devices can now be configured via the new "devsearch" Path setting in sudo.conf.
- It is now possible to preserve bash shell functions in the environment when the "env_reset" sudoers setting is disabled by removing the "*=()*" pattern from the env_delete list.
- A change made in sudo 1.8.15 inadvertantly caused sudoedit to send itself SIGHUP instead of exiting when the editor returns an error or the file was not modified.
- Sudoedit now uses an exit code of zero if the file was not actually modified. Previously, sudoedit treated a lack of modifications as an error.
- When running a command in a pseudo-tty (pty), sudo now copies a subset of the terminal flags to the new pty. Previously, all flags were copied, even those not appropriate for a pty.
- Fixed a problem with debug logging in the sudoers I/O logging plugin.
- Window size change events are now logged to the policy plugin. On xterm and compatible terminals, sudoreplay is now capable of resizing the terminal to match the size of the terminal the command was run on. The new -R option can be used to disable terminal resizing.
- Fixed a bug in visudo where a newly added file was not checked for syntax errors.
- Fixed a bug in visudo where if a syntax error in an include directory (like /etc/sudoers.d) was detected, the edited version was left as a temporary file instead of being installed.
- On PAM systems, sudo will now treat "username's Password:" as a standard password prompt. As a result, the SUDO_PROMPT environment variable will now override "username's Password:" as well as the more common "Password:". Previously, the "passprompt_override" Defaults setting would need to be set for SUDO_PROMPT to override a prompt of "username's Password:".
- A new "syslog_pid" sudoers setting has been added to include sudo's process ID along with the process name when logging via syslog.
- Fixed a bug introduced in sudo 1.8.18 where a command would not be terminated when the I/O logging plugin returned an error to the sudo front-end.
- A new "timestamp_type" sudoers setting has been added that replaces the "tty_tickets" option. In addition to tty and global time stamp records, it is now possible to use the parent process ID to restrict the time stamp to commands run by the same process, usually the shell.
- The --preserve-env command line option has been extended to accept a comma-separated list of environment variables to preserve.
Signed-off-by: Pierre-Yves <pyu@riseup.net>