LibreOffice 5.1.4 is now available for Ubuntu 16.04 LTS (Xenial Xerus), LibreOffice 5.0.6 for Ubuntu 15.10 (Wily Werewolf), and LibreOffice 3.5.7 for Ubuntu 12.04 LTS (Precise Pangolin), patching a security issue that could allow an attacker to crash the software or run malicious programs as your login.