CVE-2022-3675
Published: Nov 3, 2022
Modified: May 2, 2025
CVSS v3.1
2.6
Description
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.
| Vendor | Product | Versions |
|---|---|---|
Fedora Project | CoreOS | affected testing 36.20220906.2.0 and later - < testing 36.20221030.2.0 affected next 36.20220906.1.0 and later - < next 37.20221031.1.0affected stable 36.20220820.3.0 and later - < stable 36.20221014.3.0 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now