A sudo security update has been released for Fedora 31.

--------------------------------------------------------------------------------
Fedora Update Notification
FEDORA-2020-8b563bc5f4
2020-03-06 02:21:35.887216
--------------------------------------------------------------------------------

Name : sudo
Product : Fedora 31
Version : 1.9.0
Release : 0.1.b1.fc31
URL : http://www.courtesan.com/sudo/
Summary : Allows restricted root access for specified users
Description :
Sudo (superuser do) allows a system administrator to give certain
users (or groups of users) the ability to run some (or all) commands
as root while logging all commands and arguments. Sudo operates on a
per-command basis. It is not a replacement for the shell. Features
include: the ability to restrict what commands a user may run on a
per-host basis, copious logging of each command (providing a clear
audit trail of who did what), a configurable timeout of the sudo
command, and the ability to use the same configuration file (sudoers)
on many different machines.

--------------------------------------------------------------------------------
Update Information:

- update to latest development version 1.9.0b1 - added sudo_logsrvd and
sudo_sendlog to files and their appropriate man pages Resolves: rhbz#1787823 -
Stack based buffer overflow in when pwfeedback is enabled Resolves: rhbz#1796945
- fixes: CVE-2019-18634 - By using ! character in the shadow file instead of a
password hash can access to a run as all sudoer account Resolves: rhbz#1786709 -
fixes CVE-2019-19234 - attacker with access to a Runas ALL sudoer account can
impersonate a nonexistent user Resolves: rhbz#1786705 - fixes CVE-2019-19232 -
setrlimit(RLIMIT_CORE): Operation not permitted warning message fix Resolves:
rhbz#1773148
--------------------------------------------------------------------------------
ChangeLog:

* Mon Feb 24 2020 Attila Lakatos - 1.9.0-0.1.b1
- update to latest development version 1.9.0b1
- added sudo_logsrvd and sudo_sendlog to files and their appropriate man pages
Resolves: rhbz#1787823
- Stack based buffer overflow in when pwfeedback is enabled
Resolves: rhbz#1796945
- fixes: CVE-2019-18634
- By using ! character in the shadow file instead of a password hash can access to a run as all sudoer account
Resolves: rhbz#1786709
- fixes CVE-2019-19234
- attacker with access to a Runas ALL sudoer account can impersonate a nonexistent user
Resolves: rhbz#1786705
- fixes CVE-2019-19232
- setrlimit(RLIMIT_CORE): Operation not permitted warning message fix
Resolves: rhbz#1773148
* Mon Nov 11 2019 Radovan Sroka - 1.8.29-1
- rebase to 1.8.29
Resolves: rhbz#1766233
* Tue Oct 22 2019 Radovan Sroka - 1.8.28p1-1
- rebase to 1.8.28p1
Resolves: rhbz#1762350
--------------------------------------------------------------------------------
References:

[ 1 ] Bug #1787823 - sudo-1.8.31 is available
https://bugzilla.redhat.com/show_bug.cgi?id=1787823
[ 2 ] Bug #1796945 - CVE-2019-18634 sudo: Stack based buffer overflow in when pwfeedback is enabled [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=1796945
[ 3 ] Bug #1786709 - CVE-2019-19234 sudo: by using ! character in the shadow file instead of a password hash can access to a run as all sudoer account [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=1786709
[ 4 ] Bug #1786705 - CVE-2019-19232 sudo: attacker with access to a Runas ALL sudoer account can impersonate a nonexistent user [fedora-all]
https://bugzilla.redhat.com/show_bug.cgi?id=1786705
[ 5 ] Bug #1773148 - sudo: setrlimit(RLIMIT_CORE): Operation not permitted
https://bugzilla.redhat.com/show_bug.cgi?id=1773148
--------------------------------------------------------------------------------

This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2020-8b563bc5f4' at the command
line. For more information, refer to the dnf documentation available at
http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys