Ars Technica: Serious privilege escalation bug in Unix OSes imperils servers everywhere

Ars Technica: Serious privilege escalation bug in Unix OSes imperils servers everywhere. “A raft of Unix-based operating systems—including Linux, OpenBSD, and FreeBSD—contain flaws that let attackers elevate low-level access on a vulnerable computer to unfettered root. Security experts are advising administrators to install patches or take other protective actions as soon as possible.”