Security updates for Tuesday

Security updates have been issued by Debian (gnuplot and samba), Fedora (flatpak, kernel-headers, kernel-tools, mariadb-connector-c, php-PHPMailer, php-phpmailer6, and xml-security-c), Gentoo (binutils, libav, mupdf, spice-gtk, strongswan, and tablib), Mageia (libpng(12), mariadb, and openssl), Oracle (ghostscript), Red Hat (.NET Core, ghostscript, java-1.7.1-ibm, kernel, kernel-alt, kernel-rt, NetworkManager, rh-nginx112-nginx, rh-nginx114-nginx, and sos-collector), Scientific Linux (389-ds-base, binutils, curl and nss-pem, fuse, git, glibc, glusterfs, GNOME, gnutls, jasper, java-1.7.0-openjdk, java-11-openjdk, kernel, krb5, libcdio, libkdcraw, libmspack, libreoffice, libvirt, openssl, ovmf, python, python-paramiko, samba, setup, sssd, thunderbird, wget, wpa_supplicant, X.org X11, xerces-c, xorg-x11-server, zsh, and zziplib), SUSE (dom4j, glib2, java-1_7_0-ibm, java-1_7_1-ibm, openssh, postgresql94, procps, qemu, and tiff), and Ubuntu (samba).