A xen security update has been released for Fedora 33.

SECURITY: Fedora 33 Update: xen-4.14.1-2.fc33

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Fedora Update Notification
FEDORA-2021-7785f6c616
2021-01-25 01:23:49.983093
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Name : xen
Product : Fedora 33
Version : 4.14.1
Release : 2.fc33
URL :   http://xen.org/
Summary : Xen is a virtual machine monitor
Description :
This package contains the XenD daemon and xm command line
tools, needed to manage virtual machines running under the
Xen hypervisor

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Update Information:

IRQ vector leak on x86 [XSA-360]
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ChangeLog:

* Thu Jan 21 2021 Michael Young - 4.14.1-2
- IRQ vector leak on x86 [XSA-360]
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-7785f6c616' 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