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.
CVSS Details
- CVSS 3.1 Base Score: 6.7
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade grub2-efi-aa64-cdbootUpgrade grub2-pcUpgrade grub2-efi-x64Upgrade shim-ia32Upgrade shim-unsigned-x64Upgrade grub2-tools-efiUpgrade grub2-efi-aa64Upgrade grub2-efi-x64-cdbootUpgrade grub2-tools-minimalUpgrade grub2-efi-ia32-modulesUpgrade grub2-toolsUpgrade grub2-efi-ia32Upgrade grub2-efi-ia32-cdbootUpgrade grub2-ppc64le-modulesUpgrade grub2-pc-modulesUpgrade grub2-commonUpgrade grub2-efi-x64-modulesUpgrade shim-aa64Upgrade grub2-tools-extraUpgrade grub2-ppc64leUpgrade shim-x64Upgrade grub2-efi-aa64-modules | Aug 24, 2022 | Jun 16, 2022 |
| Amazon Linux Ami 2 | — | Upgrade grub2-pc-modulesUpgrade grub2-efi-x64-cdbootUpgrade grub2Upgrade grub2-efi-aa64Upgrade grub2-efi-x64-modulesUpgrade grub2-efi-aa64-cdbootUpgrade grub2-efi-x64-ec2Upgrade grub2-efi-x64Upgrade grub2-efi-aa64-ec2Upgrade grub2-tools-minimalUpgrade grub2-pcUpgrade grub2-commonUpgrade grub2-debuginfoUpgrade grub2-tools-efiUpgrade grub2-emuUpgrade grub2-toolsUpgrade grub2-emu-modulesUpgrade grub2-tools-extraUpgrade grub2-efi-aa64-modules | Jul 21, 2023 | Jul 20, 2023 |
| Amazon_linux_2023 | — | Upgrade grub2-efi-x64Upgrade grub2-emu-debuginfoUpgrade grub2-efi-x64-cdbootUpgrade grub2-tools-extra-debuginfoUpgrade grub2-tools-minimalUpgrade grub2-efi-x64-ec2Upgrade grub2-tools-debuginfoUpgrade grub2-efi-aa64-ec2Upgrade grub2-tools-efi-debuginfoUpgrade grub2-tools-efiUpgrade grub2-tools-extraUpgrade grub2-debugsourceUpgrade grub2-tools-minimal-debuginfoUpgrade grub2-toolsUpgrade grub2-efi-aa64-cdbootUpgrade grub2-efi-aa64-modulesUpgrade grub2-pc-modulesUpgrade grub2-debuginfoUpgrade grub2-emuUpgrade grub2-efi-aa64Upgrade grub2-pcUpgrade grub2-commonUpgrade grub2-emu-modulesUpgrade grub2-efi-x64-modules | Feb 17, 2025 | Jun 7, 2022 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jul 20, 2023 |
| Centos_linux | — | Upgrade grub2-emu-debuginfoUpgrade grub2-ppc64le-modulesUpgrade grub2-pc-modulesUpgrade grub2-debugsourceUpgrade grub2-tools-minimalUpgrade mokutil-debugsourceUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-x64-modulesUpgrade grub2-tools-extra-debuginfoUpgrade grub2-tools-efiUpgrade grub2-commonUpgrade grub2-tools-debuginfoUpgrade grub2-pcUpgrade grub2-efi-ia32-cdbootUpgrade grub2-efi-x64-cdbootUpgrade grub2-toolsUpgrade shim-ia32Upgrade shim-x64Upgrade grub2-tools-minimal-debuginfoUpgrade grub2-efi-ia32Upgrade grub2-debuginfoUpgrade mokutil-debuginfoUpgrade mokutilUpgrade grub2-tools-extraUpgrade grub2-tools-efi-debuginfoUpgrade grub2-efi-ia32-modulesUpgrade grub2-efi-x64 | Jun 17, 2022 | Jun 16, 2022 |
| Debian | — | Upgrade grub2 | Jul 30, 2024 | Jul 20, 2023 |
| Dell Powerstore Dsa2023173 | — | Upgrade Dell PowerStoreOS to the latest version | Oct 23, 2025 | Jun 21, 2023 |
| Gentoo Linux | — | Upgrade sys-boot/grub. | Sep 26, 2022 | Sep 25, 2022 |
| Huawei Euleros 2_0_sp10 | — | Upgrade grub2-pcUpgrade grub2-efi-x64Upgrade grub2-pc-modulesUpgrade grub2-tools-efiUpgrade grub2-toolsUpgrade grub2-commonUpgrade grub2-tools-extraUpgrade grub2-tools-minimalUpgrade grub2-efi-x64-modules | Aug 18, 2022 | Aug 17, 2022 |
| Oracle_linux | — | Upgrade grub2-efi-aa64Upgrade grub2-efi-x64-cdbootUpgrade grub2-tools-efiUpgrade grub2-tools-extraUpgrade grub2-tools-minimalUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-ia32Upgrade grub2-pc-modulesUpgrade grub2-toolsUpgrade grub2-efi-aa64-cdbootUpgrade grub2Upgrade grub2-pcUpgrade grub2-efi-x64-modulesUpgrade grub2-efi-ia32-modulesUpgrade grub2-commonUpgrade grub2-efi-ia32-cdbootUpgrade grub2-efi-x64 | Jun 8, 2022 | Jun 7, 2022 |
| Redhat_linux | — | Upgrade mokutil-debugsourceUpgrade grub2-tools-extra-debuginfoUpgrade grub2-commonUpgrade mokutil-debuginfoUpgrade shim-unsigned-x64Upgrade grub2-pcUpgrade grub2-emu-debuginfoUpgrade grub2-efi-x64-modulesUpgrade grub2-efi-ia32Upgrade grub2-ppc64le-modulesUpgrade grub2-efi-aa64-modulesUpgrade grub2-tools-efiUpgrade grub2-pc-modulesUpgrade grub2-tools-extraUpgrade shim-ia32Upgrade shim-x64Upgrade grub2-efi-x64-cdbootNo solution existsUpgrade grub2-debuginfoUpgrade grub2-tools-minimalUpgrade grub2-tools-debuginfoUpgrade grub2-tools-efi-debuginfoUpgrade grub2-efi-x64Upgrade grub2-debugsourceUpgrade grub2-efi-ia32-modulesUpgrade grub2-efi-ia32-cdbootUpgrade grub2-toolsUpgrade grub2-tools-minimal-debuginfoUpgrade mokutil | Jun 17, 2022 | Jun 16, 2022 |
| Rocky_linux | — | Upgrade grub2-tools-efiUpgrade grub2-tools-minimalUpgrade grub2-pcUpgrade shim-ia32Upgrade grub2-efi-x64Upgrade shim-x64Upgrade mokutilUpgrade mokutil-debuginfoUpgrade grub2-efi-ia32Upgrade grub2-efi-x64-cdbootUpgrade grub2-toolsUpgrade grub2-tools-minimal-debuginfoUpgrade shim-unsigned-x64Upgrade grub2-debuginfoUpgrade grub2-tools-extraUpgrade grub2-tools-debuginfoUpgrade mokutil-debugsourceUpgrade grub2-tools-efi-debuginfoUpgrade grub2-tools-extra-debuginfoUpgrade grub2-debugsourceUpgrade grub2-efi-ia32-cdboot | Jul 11, 2022 | Jul 7, 2022 |
| Suse | — | Upgrade grub2-s390x-emu-debugUpgrade grub2-i386-pc-debugUpgrade grub2-branding-upstreamUpgrade grub2-systemd-sleep-pluginUpgrade grub2-s390x-emuUpgrade grub2-x86_64-efi-debugUpgrade grub2-i386-pcUpgrade grub2-powerpc-ieee1275-debugUpgrade grub2-arm64-efi-debugUpgrade grub2Upgrade grub2-arm64-efiUpgrade grub2-x86_64-efiUpgrade grub2-x86_64-xenUpgrade grub2-snapper-pluginUpgrade grub2-powerpc-ieee1275 | Oct 26, 2022 | Jul 10, 2022 |
| Ubuntu | — | Upgrade grub-efi-amd64Upgrade grub-efi-arm64Upgrade grub-efi-arm64-signedUpgrade grub-efi-arm64-binUpgrade grub-efi-amd64-binUpgrade grub-efi-amd64-signedUpgrade shimUpgrade shim-signed | Sep 18, 2023 | Jul 20, 2023 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Jul 20, 2023 |
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