A mingw-python3 security update has been released for Fedora 33.

SECURITY: Fedora 33 Update: mingw-python3-3.9.1-2.fc33

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Fedora Update Notification
FEDORA-2021-ced31f3f0c
2021-01-30 01:53:46.555079
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Name : mingw-python3
Product : Fedora 33
Version : 3.9.1
Release : 2.fc33
URL :   https://www.python.org/
Summary : MinGW Windows python3
Description :
MinGW Windows python3 library.

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Update Information:

This update backports a security fix for CVE-2021-3177.
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ChangeLog:

* Thu Jan 21 2021 Sandro Mani - 3.9.1-2
- Backport fix for CVE-2021-3177
* Thu Dec 10 2020 Sandro Mani - 3.9.1-1
- Update to 3.9.1
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References:

[ 1 ] Bug #1918175 - CVE-2021-3177 mingw-python3: python: stack-based buffer overflow in PyCArg_repr in _ctypes/callproc.c [fedora-all]
  https://bugzilla.redhat.com/show_bug.cgi?id=1918175
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-ced31f3f0c' 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