Fedora 34: 2021-31fdc84207 Critical: libgcrypt Side-Channel Attack

Libgcrypt is a general purpose crypto library based on the code used

in GNU Privacy Guard. This is a development version.

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

* Tue Jun 15 2021 Jakub Jelen - 1.9.3-3

- Fix for CVE-2021-33560 (#1970098)

[ 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

su -c 'dnf upgrade --advisory FEDORA-2021-31fdc84207' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

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/security/

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