A mingw-python-pillow security update has been released for Fedora 34.

SECURITY: Fedora 34 Update: mingw-python-pillow-8.1.2-4.fc34

--------------------------------------------------------------------------------
Fedora Update Notification
FEDORA-2021-cbfaefb390
2021-09-21 15:31:09.085223
--------------------------------------------------------------------------------

Name : mingw-python-pillow
Product : Fedora 34
Version : 8.1.2
Release : 4.fc34
URL :   http://python-pillow.github.io/
Summary : MinGW Windows Python pillow library
Description :
MinGW Windows Python pillow library.

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

Backport patch for CVE-2021-23437.
--------------------------------------------------------------------------------
ChangeLog:

* Mon Sep 13 2021 Sandro Mani - 8.1.2-4
- Backport fix for CVE-2021-23437
--------------------------------------------------------------------------------
References:

[ 1 ] Bug #2001908 - CVE-2021-23437 mingw-python-pillow: python-pillow: possible ReDoS via the getrgb function [fedora-all]
  https://bugzilla.redhat.com/show_bug.cgi?id=2001908
[ 2 ] Bug #2001909 - CVE-2021-23437 python-pillow: possible ReDoS via the getrgb function [fedora-all]
  https://bugzilla.redhat.com/show_bug.cgi?id=2001909
[ 3 ] Bug #2001910 - CVE-2021-23437 python2-pillow: python-pillow: possible ReDoS via the getrgb function [fedora-all]
  https://bugzilla.redhat.com/show_bug.cgi?id=2001910
--------------------------------------------------------------------------------

This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-cbfaefb390' 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