[sudo-workers] sudo 1.9.4rc1 released

Todd C. Miller Todd.Miller at sudo.ws
Mon Nov 23 13:05:23 MST 2020

The first release candidate for sudo 1.9.4 is now available.  In
addition to bug fixes, Sudo 1.9.4 adds support for JSON-formatted
logs as well as sending log messages to sudo_logsrvd even when I/O
logging is not in use.


SHA256 checksum:

MD5 checksum:

Binary packages:

For a list of download mirror sites, see:

Sudo web site:

Sudo web site mirrors:

Major changes between sudo 1.9.4rc1 and 1.9.4b2:

 * Updated translations from translationproject.org

 * The fix for sudo_logsrvd debug handling on SIGHUP caused problems
   for sudo, which initializes the debug framework more than once
   but with different flags.

Major changes between sudo 1.9.4b2 and 1.9.4b1:

 * The sudoers plugin now defaults to sudo-format logs by default,
   as per the documentation (and historical behavior).

 * Fixed a crash in the sudoers plugin when an I/O plugin logging
   function returned an error.

Major changes between sudo 1.9.4b1 and 1.9.3p1:

 * The sudoers parser will now detect when an upper-case reserved
   word is used when declaring an alias.  Now instead of "syntax
   error, unexpected CHROOT, expecting ALIAS" the message will be
   "syntax error, reserved word CHROOT used as an alias name".
   Bug #941.

 * Better handling of sudoers files without a final newline.
   The parser now adds a newline at end-of-file automatically which
   removes the need for special cases in the parser.

 * Fixed a regression introduced in sudo 1.9.1 in the sssd back-end
   where an uninitialized pointer could be freed on an error path.
   GitHub issue #67.

 * The core logging code is now shared between sudo_logsrvd and
   the sudoers plugin.

 * JSON log entries sent to syslog now use "minimal" JSON which
   skips all non-essention whitespace.

 * The sudoers plugin can now produce JSON-formatted logs.  The
   "log_format" sudoers option can be used to select sudo or json
   format logs.  The default is sudo format logs.

 * The sudoers plugin and visudo now display the column number in
   syntax error messages in addition to the line number.  Bug #841.

 * If I/O logging is not enabled but "log_servers" is set, the
   sudoers plugin will now log accept events to sudo_logsrvd.
   Previously, the accept event was only sent when I/O logging was
   enabled.  The sudoers plugin now sends reject and alert events too.

 * The sudo logsrv protocol has been extended to allow an AlertMessage
   to contain an optional array of InfoMessage, as AcceptMessage
   and RejectMessage already do.

 * Fixed a bug in sudo_logsrvd where receipt of SIGHUP would result
   in duplicate entries in the debug log when debugging was enabled.

 * The visudo utility now supports EDITOR environment variables
   that use single or double quotes in the command arguments.
   Bug #942.

 * The PAM session modules now run when sudo is set-user-ID root,
   which allows a module to determine the original user-ID.
   Bug #944.

 * Fixed a regression introduced in sudo 1.8.24 in the LDAP back-end
   where sudoNotBefore and sudoNotAfter were applied even when the
   SUDOERS_TIMED setting was not present in ldap.conf.  Bug #945.

 * Sudo packages for macOS 11 now contain universal binaries that
   support both Intel and Apple Silicon CPUs.
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