A libtpms security update has been released for Fedora 33.

SECURITY: Fedora 33 Update: libtpms-0.8.2-0.20210426git729fc6a4ca.fc33

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Fedora Update Notification
FEDORA-2021-cfdc434610
2021-05-05 00:52:51.707339
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Name : libtpms
Product : Fedora 33
Version : 0.8.2
Release : 0.20210426git729fc6a4ca.fc33
URL :   http://github.com/stefanberger/libtpms
Summary : Library providing Trusted Platform Module (TPM) functionality
Description :
A library providing TPM functionality for VMs. Targeted for integration
into Qemu.

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Update Information:

Security fix for CVE-2021-3505
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ChangeLog:

* Mon Apr 26 2021 Stefan Berger - 0.8.2-0.20210426git729fc6a4ca
- tpm2: CryptSym: fix AES output IV; a CVE has been filed for this issue
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References:

[ 1 ] Bug #1950046 - CVE-2021-3505 libtpms: RSA keys weaker than expected
  https://bugzilla.redhat.com/show_bug.cgi?id=1950046
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-cfdc434610' 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