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CVE-2021-3418

If certificates that signed grub are installed into db, grub can be booted directly. It will then boot any kernel without signature validation. The booted kernel will think it was booted in secureboot mode and will implement lockdown, yet it could have been tampered. This flaw is a reintroduction of CVE-2020-15705 and only affects grub2 versions prior to 2.06 and upstream and distributions using the shim_lock mechanism.

Publication date: Tue, 16 Mar 2021 03:15:00 +0000


Cyber News related to CVE-2021-3418

CVE-2018-7368 - Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: CVE-2019-3418. Reason: This candidate is a reservation duplicate of CVE-2019-3418. Notes: All CVE users should reference CVE-2019-3418 instead of this candidate. All references and ...
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CVE-2021-3418 - If certificates that signed grub are installed into db, grub can be booted directly. It will then boot any kernel without signature validation. The booted kernel will think it was booted in secureboot mode and will implement lockdown, yet it could ...
4 years ago
Vulnerability Summary for the Week of March 11, 2024 - Published 2024-03-15 CVSS Score not yet calculated Source & Patch Info CVE-2021-47111416baaa9-dc9f-4396-8d5f-8c081fb06d67416baaa9-dc9f-4396-8d5f-8c081fb06d67416baaa9-dc9f-4396-8d5f-8c081fb06d67 PrimaryVendor - Product linux - linux Description In the ...
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