We all know the jokes. Linux admin: “Make me a sandwich!” Minion: “No!” Linux admin: “sudo Make me a sandwich!” Minion: “Okay.” But, it’s no joke when an ancient sudo security hole is uncovered.

For those uninitiated in the ways of the Unix command line, sudo is a preface that grants regular users administrative powers for whatever command they wish to execute. It’s a handy tool for avoiding use of the root account, always a dangerous proposition.

Many so-called Linux vulnerabilities, turn out, upon closer examination to be nothing much. But, then, then there’s ones like sudo’s CVE-2021-3156, aka “Baron Samedit.”

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