Fedora CoreOS supports setting a GRUB bootloader password
using a Butane config. When this feature is enabled, GRUB requires a password to access the
GRUB command-line, modify kernel command-line arguments, or boot
non-default OSTree deployments. Recent Fedora CoreOS releases have a
misconfiguration which allows booting non-default OSTree deployments
without entering a password. This allows someone with access to the
GRUB menu to boot into an older version of Fedora CoreOS, reverting
any security fixes that have recently been applied to the machine. A
password is still required to modify kernel command-line arguments and
to access the GRUB command line.
Metrics
Affected Vendors & Products
References
History
Fri, 02 May 2025 19:15:00 +0000
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Status: PUBLISHED
Assigner: fedora
Published: 2022-11-03T17:25:02.823Z
Updated: 2025-05-02T18:53:10.153Z
Reserved: 2022-10-24T06:40:10.332Z
Link: CVE-2022-3675

Updated: 2024-08-03T01:14:03.251Z

Status : Modified
Published: 2022-11-03T18:15:14.627
Modified: 2024-11-21T07:20:00.590
Link: CVE-2022-3675

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