Security updates for Wednesday

Security updates have been issued by Debian (krb5), Fedora (galera, mariadb, and mingw-python3), Red Hat (389-ds:1.4, kernel, kernel-rt, kpatch-patch, krb5, and usbguard), Scientific Linux (krb5), Slackware (kernel), SUSE (binutils, dbus-1, exiv2, freerdp, git, java-1_8_0-ibm, kernel, libarchive, libdb-4_8, libmspack, nginx, opencc, python, python3, rxvt-unicode, sudo, supportutils, systemd, vim, and webkit2gtk3), and Ubuntu (bind9, gnutls28, libsamplerate, linux-gcp-5.4, perl, pixman, shadow, and sysstat).