Synthetic Memory Protections.

Theo de Raadt (derradt@) was scheduled to present at CanSecWest. That's now happened, and slides of Theo's presentation, Synthetic Memory Protections, can be found in the usual place. Video is available on the bird site.

#security #video

OpenBSD workstation hardening.

I wanted to share a list of hardening you can do on your OpenBSD workstation, and explaining the threat model of each change...

https://dataswamp.org/~solene/2023-12-31-hardened-openbsd-workstation.html

#security #system

Some OpenBSD features that aren't widely known.

In this blog post, you will learn about some OpenBSD features that can be useful, but not widespread. They often have a niche usage, but it's important to know they exist to prevent you from reinventing the wheel...

https://dataswamp.org/~solene/2024-02-20-rarely-known-openbsd-features.html

#system #security

Re: lcamtuf on the recent xz debacle

Just for clarity, does anyone know what "Unix-like operating systems" would be affected by this?

None. TLDR: The build process of the backdoor explicitly aborts on platforms other than Linux x86-64...

https://marc.info/?l=openbsd-misc&m=171227941117852&w=2

#security #xz