A new vulnerability has been discovered that could shut down most Linux systems using a command short enough to fit in a tweet. Linux administrator and founder of the security certificate company SSLMate Andrew Ayer discovered the bug, which has the potential to kill a number of critical commands while making others unstable just by entering the short command: NOTIFY_SOCKET=/run/systemd/notify systemd-notify "". Ayer described the severity of the bug in an advisory, saying: "All of this can be caused by a command that's short enough to fit in a Tweet. The bug is serious, as it allows any local user… [Continue Reading]