A xen security update has been released for Fedora 34.

SECURITY: Fedora 34 Update: xen-4.14.3-3.fc34

--------------------------------------------------------------------------------
Fedora Update Notification
FEDORA-2021-2b3a2de94f
2021-12-09 01:34:54.383905
--------------------------------------------------------------------------------

Name : xen
Product : Fedora 34
Version : 4.14.3
Release : 3.fc34
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

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

guests may exceed their designated memory limit [XSA-385, CVE-2021-28706] PoD
operations on misaligned GFNs [XSA-388, CVE-2021-28704, CVE-2021-28707
CVE-2021-28708] issues with partially successful P2M updates on x86 [XSA-389,
CVE-2021-28705, CVE-2021-28709]
--------------------------------------------------------------------------------
ChangeLog:

* Tue Nov 23 2021 Michael Young - 4.14.3-3
- guests may exceed their designated memory limit [XSA-385, CVE-2021-28706]
- PoD operations on misaligned GFNs [XSA-388, CVE-2021-28704, CVE-2021-28707
CVE-2021-28708]
- issues with partially successful P2M updates on x86 [XSA-389,
CVE-2021-28705, CVE-2021-28709]
--------------------------------------------------------------------------------

This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-2b3a2de94f' 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
--------------------------------------------------------------------------------
_______________________________________________