A libgcrypt security update has been released for Fedora 34.

SECURITY: Fedora 34 Update: libgcrypt-1.9.3-3.fc34

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Fedora Update Notification
FEDORA-2021-31fdc84207
2021-07-01 01:12:48.702442
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Name : libgcrypt
Product : Fedora 34
Version : 1.9.3
Release : 3.fc34
URL :   https://www.gnupg.org/
Summary : A general-purpose cryptography library
Description :
Libgcrypt is a general purpose crypto library based on the code used
in GNU Privacy Guard. This is a development version.

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Update Information:

Security fix for CVE-2021-33560 (#1970098)
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ChangeLog:

* Tue Jun 15 2021 Jakub Jelen - 1.9.3-3
- Fix for CVE-2021-33560 (#1970098)
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References:

[ 1 ] Bug #1970096 - CVE-2021-33560 libgcrypt: mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm
  https://bugzilla.redhat.com/show_bug.cgi?id=1970096
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-31fdc84207' 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