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lemmyreader ( lemmyreader@lemmy.ml )  to Linux@lemmy.mlEnglish · 3 years ago

If all kernel bugs are security bugs, how do you keep your Linux safe?

www.zdnet.com

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  • cross-posted to:
  • linuxfr@jlai.lu
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If all kernel bugs are security bugs, how do you keep your Linux safe?

www.zdnet.com

lemmyreader ( lemmyreader@lemmy.ml )  to Linux@lemmy.mlEnglish · 3 years ago
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  • cross-posted to:
  • linuxfr@jlai.lu
Since February, there've been 800 newly assigned CVEs. Your job? Update your main Linux distro more often.
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  • lemmyng ( lemmyng@lemmy.ca ) 
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    3 years ago

    Just because it has a CVE number doesn’t mean it’s exploitable. Of the 800 CVEs, which ones are in the KEV catalogue? What are the attack vectors? What mitigations are available?

  • KindaABigDyl ( KindaABigDyl@programming.dev ) 
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    3 years ago

    Great reason to push more code out of the kernel and into user land

    • kabi ( kabi@lemm.ee ) 
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      3 years ago

      Is it HURD’n’ time?

      • TimeSquirrel ( TimeSquirrel@kbin.social ) 
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        3 years ago

        I dunno, Stallman, it’s been 30 years, you got something for us?

      • the_weez ( jodanlime@midwest.social ) 
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        3 years ago

        I think we should just resurrect Plan 9 instead.

        • Peter1986C ( Peter1986C@lemmings.world ) 
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          3 years ago

          Plan 9 is also monolithic, according to wikipedia. For BSD it depends.

          • the_weez ( jodanlime@midwest.social ) 
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            3 years ago

            I mean, you’re right but I still want to see a modernized plan 9, I just think it would be neat.

            • leopold ( leopold@lemmy.kde.social ) 
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              3 years ago

              that would be Inferno

              • the_weez ( jodanlime@midwest.social ) 
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                3 years ago

                Latest release was 9 years ago, not exactly what I’m looking for. 9front is probably closer to what I want than inferno.

      • OmnipotentEntity ( OmnipotentEntity@beehaw.org ) 
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        3 years ago

        Redox-OS?

        • mexicancartel ( mexicancartel@lemmy.dbzer0.com ) 
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          3 years ago

          Ah shit MIT license

          • EinfachUnersetzlich ( EinfachUnersetzlich@lemm.ee ) 
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            3 years ago

            Is that bad?

            • mexicancartel ( mexicancartel@lemmy.dbzer0.com ) 
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              3 years ago

              It means anyone including microsoft or apple can use the code contribution or take the entire softwarw and make some modifications and sell it proprietary. Any optimisations or features made by community can be proprietarised

        • acockworkorange ( acockworkorange@mander.xyz ) 
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          3 years ago

          Interesting, but why implement yet another windowing system?

      • barsoap ( barsoap@lemm.ee ) 
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        3 years ago

        L4. HURD never panned out, and L4 is where the microkernel research settled: Memory protection, scheduling, IPC in the kernel the rest outside and there’s also important insights as to the APIs to do that with. In particular the IPC mechanism is opaque, the kernel doesn’t actually read the messages which was the main innovation over Mach.

        Literally billions of devices run OKL4, seL4 systems are also in mass production. Think broadband processors, automotive, that kind of stuff.

        The kernel being watertight doesn’t mean that your system is, though, you generally don’t need kernel privileges to exfiltrate any data or generally mess around, root suffices.

        If you want to see this happening – I guess port AMDGPU to an L4?

        • acockworkorange ( acockworkorange@mander.xyz ) 
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          3 years ago

          seL4 is the world’s only hypervisor with a sound worst-case execution-time (WCET) analysis, and as such the only one that can give you actual real-time guarantees, no matter what others may be claiming. (If someone else tells you they can make such guarantees, ask them to make them in public so Gernot can call out their bullshit.)

          That bit on their FAQ is amusing.

    • 4am ( 4am@lemm.ee ) 
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      3 years ago

      So what you are saying is “mach was right”?

      • acockworkorange ( acockworkorange@mander.xyz ) 
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        3 years ago

        Everybody knows it was. Even Linus said a microkernel architecture was better. He just wanted something working “now” for his hobby project, and microkernel research was still ongoing then.

  • Catsrules ( Catsrules@lemmy.ml ) 
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    3 years ago

    Best way I found it running this command

    rm -rf /

    Then do a reboot just to be sure.

    Good luck compromising my system after that.

    FYI This is a joke Don’t actually run this command :)

    • Possibly linux ( possiblylinux127@lemmy.zip ) 
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      3 years ago

      sudo apt-get remove systemd (don’t actually run this)

      • CarrotsHaveEars ( racketlauncher831@lemmy.ml ) 
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        3 years ago

        I ran it and followed a documentation to install Void Linux and now it runs so much smoother!

      • cheezits ( cheezits@lemmy.ca ) 
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        3 years ago

        Jokes on you I use a mac

  • bloodfart ( bloodfart@lemmy.ml ) 
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    3 years ago

    That’s a crazy “if”

  • Swordgeek ( swordgeek@lemmy.ca ) 
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    3 years ago

    Step one: stop listening to anything from Ziff-Davis.

  • MonkderDritte ( MonkderDritte@feddit.de ) 
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    3 years ago

    pacman -Syu

    Rhetorical question?

  • PlexSheep ( PlexSheep@infosec.pub ) 
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    3 years ago

    Security is not a binary variable, but managed in terms of risk. Update your stuff, don’t expose it to the open Internet if it doesn’t need it, and so on. If it’s a server, it should probably have unattended upgrades.

  • Sonori ( sonori@beehaw.org ) 
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    3 years ago

    Crontab dnf update -y and trust that if anything breaks uptime monitoing/ someone will let me know sooner or later.

    • Possibly linux ( possiblylinux127@lemmy.zip ) 
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      3 years ago

      Don’t use cron for that. Use the package managers auto update utility. Plus if you use the proper tools you can set it to security updates only

  • django ( django@discuss.tchncs.de ) 
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    3 years ago

    Install all the patches immediately.

  • MadMadBunny ( MadMadBunny@lemmy.ca ) 
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    3 years ago

    Air gap.

    • Possibly linux ( possiblylinux127@lemmy.zip ) 
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      3 years ago

      Honestly it is a valid option for critical systems. It is a bad idea to connect water treatment plans to the internet for example

  • redlue ( redlue@startrek.website ) Banned
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    3 years ago

    Removed by mod

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