A python-cryptography security update has been released for Fedora 33.

SECURITY: Fedora 33 Update: python-cryptography-3.2.1-2.fc33

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Fedora Update Notification
FEDORA-2021-8e36e7ed1a
2021-02-12 01:40:32.524542
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Name : python-cryptography
Product : Fedora 33
Version : 3.2.1
Release : 2.fc33
URL :   https://cryptography.io/en/latest/
Summary : PyCA's cryptography library
Description :
cryptography is a package designed to expose cryptographic primitives and
recipes to Python developers.

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Update Information:

Security fix for CVE-2020-36242 Fixed a bug where certain sequences of update()
calls when symmetrically encrypting very large payloads (>2GB) could result in
an integer overflow, leading to buffer overflows.
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ChangeLog:

* Mon Feb 8 2021 Christian Heimes - 3.2.1-2
- CVE-2020-36242: Fixed a bug where certain sequences of update() calls
when symmetrically encrypting very large payloads (>2GB) could result
in an integer overflow, leading to buffer overflows.
- Resolves: rhbz#1926227
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References:

[ 1 ] Bug #1926226 - CVE-2020-36242 python-cryptography: certain sequences of update() calls when symmetrically encrypting very large payloads could result in an integer overflow and lead to buffer overflows
  https://bugzilla.redhat.com/show_bug.cgi?id=1926226
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-8e36e7ed1a' 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