A sudo security update has been released for Fedora 33.

SECURITY: Fedora 33 Update: sudo-1.9.5p1-1.fc33

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Fedora Update Notification
FEDORA-2021-324479472c
2021-01-20 01:31:19.232238
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Name : sudo
Product : Fedora 33
Version : 1.9.5p1
Release : 1.fc33
URL :   https://www.sudo.ws
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.

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Update Information:

Rebase to 1.9.5p1 - updated sudo url Resolves: rhbz#1902758 - enabled python
plugin as a subpackage Resolves: rhbz#1909299 - fixed double free in
sss_to_sudoers Resolves: rhbz#1885874 - fixed CVE-2021-23239 sudo: possible
directory existence test due to race condition in sudoedit Resolves:
rhbz#1915055 - fixed CVE-2021-23240 sudo: symbolic link attack in SELinux-
enabled sudoedit Resolves: rhbz#1915054
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ChangeLog:

* Mon Jan 18 2021 Radovan Sroka - 1.9.5p1-1
- rebase to 1.9.5p1
- updated sudo url
Resolves: rhbz#1902758
- enabled python plugin as a subpackage
Resolves: rhbz#1909299
- fixed double free in sss_to_sudoers
Resolves: rhbz#1885874
- fixed CVE-2021-23239 sudo: possible directory existence test due to race condition in sudoedit
Resolves: rhbz#1915055
- fixed CVE-2021-23240 sudo: symbolic link attack in SELinux-enabled sudoedit
Resolves: rhbz#1915054
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References:

[ 1 ] Bug #1915052 - CVE-2021-23239 sudo: possible directory existence test due to race condition in sudoedit
  https://bugzilla.redhat.com/show_bug.cgi?id=1915052
[ 2 ] Bug #1915053 - CVE-2021-23240 sudo: symbolic link attack in SELinux-enabled sudoedit
  https://bugzilla.redhat.com/show_bug.cgi?id=1915053
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-324479472c' 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