Security updates for Monday

Security updates have been issued by Debian (hyperkitty, libxml2, nginx, openjdk-11-jre-dcevm, rxvt-unicode, samba, and webkit2gtk), Fedora (exiv2, java-1.8.0-openjdk-aarch32, mingw-python-pillow, opendmarc, php-symfony3, php-symfony4, python-pillow, runc, rust-cranelift-codegen-shared, rust-cranelift-entity, and rxvt-unicode), openSUSE (curl, hivex, libu2f-host, libX11, libxls, singularity, and upx), Oracle (dotnet3.1 and dotnet5.0), Red Hat (docker, glib2, and runc), and Ubuntu (lz4).