Security updates for Tuesday

Security updates have been issued by Debian (libdatetime-timezone-perl, pjproject, and tzdata), Mageia (chromium-browser-stable, docker, graphicsmagick, and libtiff), Oracle (expat), Red Hat (expat, httpd:2.4, openssl, and screen), Scientific Linux (expat and openssl), and Ubuntu (libtasn1-6, linux-oem-5.14, openjdk-lts, and paramiko).