There’s a new vulnerability du jour in Linux called Segment Smack. The early writeups about it were really confusing, so I sorted it out and wrote it up for my employer. You can read it here.
The key takeaways, in my opinion: You’re almost guaranteed to have to reboot for this to take effect. Also, most of the writeups say there’s nothing you can do to mitigate except patch. Not quite true. I show you in the writeup how to block the attack long enough to free resources so you can patch. There’s nothing good you can do, but there is a quick fix available to you if you need it.
David Farquhar is a computer security professional, entrepreneur, and author. He has written professionally about computers since 1991, so he was writing about retro computers when they were still new. He has been working in IT professionally since 1994 and has specialized in vulnerability management since 2013. He holds Security+ and CISSP certifications. Today he blogs five times a week, mostly about retro computers and retro gaming covering the time period from 1975 to 2000.