The bug allows attackers to swipe data from a CPU’s registers. […] the exploit doesn’t require physical hardware access and can be triggered by loading JavaScript on a malicious website.

  • cwagner@lemmy.cwagner.me
    link
    fedilink
    arrow-up
    2
    ·
    1 year ago

    Anyone running a public server, be it at a provider or at home, should also panic a bit.

    My home server is only reachable via tailscale, so that is fine. But I have a VPS (and so does my work), the way I understand it that means I better hope my provider has patched their servers (and Hetzner in case of my job)? Good thing my Lemmy instance is on an ARM VPS, safe for now ;)

    • jarfil@beehaw.org
      link
      fedilink
      arrow-up
      3
      ·
      1 year ago

      Tailscale… accessible from where? It would likely require an attacker to jump from the endpoint to a vulnerable application (or SSH) which, while possible, seems improbable. Maybe over time as the exploit gets packaged in more suites, or if targeted personally.

      On the VPS, check cpuinfo to see if it’s one of the vulnerable ones. If it is, then I’d either ask them directly, avoid that kind of VPS for a while, or use it for non-sensitive stuff until it gets a fix.

      ARM… will have its day. Speculative branching is too tempting to ignore, and too difficult to implement flawlessly. Just give them time 😉

      • cwagner@lemmy.cwagner.me
        link
        fedilink
        arrow-up
        2
        ·
        1 year ago

        Tailscale… accessible from where?

        It’s a wireguard based VPN, so asccessible from my Tailscale network ;) It would require someone hacking Tailscale, and if they manage that, they’d have a lot of more interesting, mainly corporate, targets than me :D

        On the VPS, check cpuinfo to see if it’s one of the vulnerable ones. If it is, then I’d either ask them directly, avoid that kind of VPS for a while, or use it for non-sensitive stuff until it gets a fix.

        Planning to do so, I think it’s an EPYC. But I’m not home for another day and don’t have my certificate to SSH to the machine ;) For work I actually remembered we use a dedicated server, so all payload is controlled by us anyway.

        ARM… will have its day.

        As I said

        safe for now ;)