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not_IO@lemmy.blahaj.zone to Linux@programming.devEnglish ·
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2 days ago

The same 732-byte Python script roots every Linux distribution shipped since 2017

copy.fail

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  • cross-posted to:
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The same 732-byte Python script roots every Linux distribution shipped since 2017

copy.fail

not_IO@lemmy.blahaj.zone to Linux@programming.devEnglish ·
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2 days ago
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21
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  • cross-posted to:
  • selfhosted@lemmy.world
  • selfhosted@lemmy.world
  • technology@lemmy.world
  • cybersecurity@sh.itjust.works
  • cybersecurity@sh.itjust.works
Copy Fail — 732 Bytes to Root
copy.fail
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CVE-2026-31431. 100% Reliable Linux LPE — no race, no per-distro offsets, page-cache write that bypasses on-disk file-integrity tools and crosses containers. Found by Xint Code.

woaw

also a good blog post about it https://xint.io/blog/copy-fail-linux-distributions

  • Rimu@piefed.social
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    2 days ago

    A mitigation that worked for me - https://github.com/theori-io/copy-fail-CVE-2026-31431/issues/26

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