Sudo Files

Sudo now uses the NODEV macro consistently. Bug [#1074].

Fixed a bug where the ALL command in a sudoers rule would override a previous NOSETENV tag. Command tags are inherited from previous Cmnds in a Cmnd_Spec_List. There is a special case for the SETENV tag with the ALL command, where SETENV is implied if no explicit SETENV or NOSETENV tag is specified. This special case did not take into account that a NOSETENV tag that was inherited should override this behavior.

If sudo is run via ssh without a terminal and a password is required, it now suggest using ssh's -t option.

Fixed the display of timeout values in the sudo -V output on systems without a C99-compliant snprintf() function.

Quieted a number of minor Coverity warnings.

Fixed a problem running sudo from a serial console on Linux when the command is run in a pseudo-terminal (the default).

Fixed a crash in sudo which could occur if there was a fatal error after the user was validated but before the command was actually run.

Fixed a number of man page style warnings. The "lint" make target in the docs directory will now run groff with warnings enabled if it is available. Bug [#1075].

The ignore_dot sudoers setting is now on by default. There is now a --disable-ignore-dot configure option to disable it. The --with-ignore-dot configure option has been deprecated.

Fixed a problem with the pwfeedback option where an initial backspace would reduce the maximum length allowed for the password. GitHub issue [#439].

Fixed minor grammar and spelling problems in the man pages.

Fixed a bug where a user could avoid entering a password for sudo -l command if they specified their own user or group name via the -u or -g options.

Avoid potential password guessing based on timing attacks on the strcmp() function on systems without PAM or a crypt() function where plaintext passwords are stored in the shadow password file.

Fixed a potential information leak where sudo -l command could be used to determine whether an executable exists in a directory that they do not have search access to.

Sudo uses TCSAFLUSH, not TCSADRAIN, when disabling echo once again. A long time ago sudo changed from using TCSAFLUSH to TCSADRAIN due to some systems having bugs related to TCSAFLUSH. That should no longer be a concern. Using TCSAFLUSH ensures that password input that has been received by the kernel, but not yet read by sudo, will be discarded and not echoed.

Added the SUDO_TTY environment variable if the user has a terminal. This can be used to find the user's original tty device when sudo runs the command in its own pseudo-terminal. GitHub issue [#447].

New Cantonese translation for sudo.