A swtpm security update has been released for Fedora 31.

SECURITY: Fedora 31 Update: swtpm-0.3.4-1.20200811git80f0418.fc31

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Fedora Update Notification
FEDORA-2020-18f0766606
2020-08-20 01:03:35.306017
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Name : swtpm
Product : Fedora 31
Version : 0.3.4
Release : 1.20200811git80f0418.fc31
URL :   http://github.com/stefanberger/swtpm
Summary : TPM Emulator
Description :
TPM emulator built on libtpms providing TPM functionality for QEMU VMs

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Update Information:

Update to v0.3.4 release
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ChangeLog:

* Tue Aug 11 2020 Stefan Berger - 0.3.4-1.20200811git80f0418
- Update to v0.3.4 release
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2020-18f0766606' 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