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

Security fix for CVE-2021-33560 (#1970098). --------------------------------------------------------------------------------Fedora Update Notification FEDORA-2021-31fdc84207 2021-07-01 01:12:48.702442 --------------------------------------------------------------------------------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. --------------------------------------------------------------------------------Update Information: Security fix for CVE-2021-33560 (#1970098) --------------------------------------------------------------------------------ChangeLog: * Tue Jun 15 2021 Jakub Jelen - 1.9.3-3 - Fix for CVE-2021-33560 (#1970098) --------------------------------------------------------------------------------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 --------------------------------------------------------------------------------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 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/ --------------------------------------------------------------------------------_______________________________________________ package-announce mailing list -- This email address is being protected from spambots. You need JavaScript enabled to view it. To unsubscribe send an email This email address is being protected from spambots. You need JavaScript enabled to view it. Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/This email address is being protected from spambots. You need JavaScript enabled to view it./ Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure . Tackling the improper implementation of ElGamal encryption within libgcrypt to safeguard against side-channel vulnerabilities.. Fedora Security Advisory, libgcrypt Update, Cryptography Fix, Side-Channel Attack, Security Patch. . Severity: Critical. LinuxSecurity.com Team

Jun 30, 2021 •Critical Fedora