Security updates for Thursday

Security updates have been issued by CentOS (firefox and thunderbird), Debian (asterisk, git, mariadb-10.3, node-url-parse, python-cryptography, and sofia-sip), Fedora (c-ares, golang-github-need-being-tree, golang-helm-3, golang-oras, golang-oras-1, and golang-oras-2), Oracle (httpd:2.4, kernel, php:8.0, python-setuptools, python3, samba, systemd, tar, and webkit2gtk3), Red Hat (webkit2gtk3), SUSE (phpMyAdmin, poppler, and postgresql12), and Ubuntu (dcmtk and linux-hwe).