Plurrrr

Over the past few days, news of CVE-2019-14287 — a newly discovered open source vulnerability in Sudo, Linux’s popular command tool has been grabbing quite a few headlines. Since vulnerabilities in widespread and established open source projects can often cause a stir, we decided to present you with a quick cheat sheet to let you know exactly what the fuss is about.

Here is everything you need to know about the Sudo vulnerability, how it works, and how to handle the vulnerable Sudo component, if you find that you are currently at risk.

If you want to display the time to a user of your application, you query the time of day. However, if your application needs to measure elapsed time, you need a timer that will give the right answer even if the user changes the time on the system clock.