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CVE-2022-28735

Medium

Description

The GRUB2's shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems. Allowing such files to be loaded may lead to unverified code and modules to be loaded in GRUB2 breaking the secure boot trust-chain.

SeverityMedium
CVSS6.7
Exploit probability—
ProductGnu Grub2
PublishedJul 20, 2023
First seenJul 20, 2023

How to fix

Update
  • gnu grub22.06-3 or later

Affected products

ProductAffected versionsFixed in
gnu grub22.00 ≤ v < 2.06-32.06-3

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