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𝓢𝓮𝓮𝓙𝓪𝔂𝓔𝓶𝓶 to Linux@lemmy.ml • 1 year ago

Critical vulnerability affecting most Linux distros allows for bootkits

arstechnica.com

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  • security@lemmy.ml
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Critical vulnerability affecting most Linux distros allows for bootkits

arstechnica.com

𝓢𝓮𝓮𝓙𝓪𝔂𝓔𝓶𝓶 to Linux@lemmy.ml • 1 year ago
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  • security@lemmy.ml
Buffer overflow in bootloader shim allows attackers to run code each time devices boot up.
  • folkrav
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    1 year ago

    It’s the last sentence of the article - 9.8/10. In this case it’s probably called critical because of the potential consequences of the exploit being a full machine takeover, not the likeliness of the exploit being used.

    • @bizdelnick@lemmy.ml
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      5•1 year ago

      It means that CVSS is calculated wrong. It can’t be so big because default configuration is not affected and attacker requires admin access to change it.

      • folkrav
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        3•1 year ago

        I mean take a look at the report. Still not sure how it’s “wrong”.

        https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?name=CVE-2023-40547&vector=AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H&version=3.1&source=NIST

      • @psud@lemmy.world
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        3•1 year ago

        Admin or physical access.

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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

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