Security updates for Thursday

Security updates have been issued by Debian (emacs and openh264), Fedora (rpm-ostree), Mageia (dcmtk, libcap, openssh, and proftpd), Red Hat (emacs, kernel, and pki-servlet-engine), Slackware (emacs), SUSE (chromium, ffmpeg-4, ffmpeg-7, gnutls, libiniparser-devel, procps, socat, vim, xorg-x11-server, and xwayland), and Ubuntu (binutils, libsndfile, libxmltok, and php5).