A flaw was found in grub2 in versions prior to 2.06. The cutmem command does not honor secure boot locking allowing an privileged attacker to remove address ranges from memory creating an opportunity to circumvent SecureBoot protections after proper triage about grub's memory layout. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade shim-x64Upgrade shim-aa64Upgrade shim-unsigned-aarch64Upgrade shim-ia32Upgrade shim-unsigned-x64 | May 4, 2022 | Mar 3, 2021 |
| Alpine Linux | — | Upgrade grub | Aug 22, 2024 | Mar 3, 2021 |
| Amazon Linux Ami 2 | — | Upgrade grub2-efi-aa64-ec2Upgrade grub2-efi-x64-ec2Upgrade grub2-tools-efiUpgrade grub2-efi-aa64-cdbootUpgrade grub2-efi-x64-cdbootUpgrade grub2-efi-x64Upgrade grub2-efi-aa64-modulesUpgrade grub2-efi-x64-modulesUpgrade grub2-toolsUpgrade grub2-tools-minimalUpgrade grub2-tools-extraUpgrade grub2Upgrade grub2-commonUpgrade grub2-pcUpgrade grub2-emu-modulesUpgrade grub2-debuginfoUpgrade grub2-efi-aa64Upgrade grub2-emuUpgrade grub2-pc-modules | Jul 19, 2021 | Mar 3, 2021 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Mar 3, 2021 |
| Centos_linux | — | Upgrade grub2-tools-efi-debuginfoUpgrade grub2-commonUpgrade grub2-efi-ia32-modulesUpgrade fwupd-tests-debuginfoUpgrade grub2-toolsUpgrade grub2-efi-x64-cdbootUpgrade fwupd-debuginfoUpgrade shim-x64Upgrade fwupdUpgrade grub2-efi-ia32Upgrade grub2-ppc64-modulesUpgrade grub2-tools-minimal-debuginfoUpgrade shim-ia32Upgrade grub2-tools-extraUpgrade grub2-ppc-modulesUpgrade grub2-debuginfoUpgrade grub2-tools-efiUpgrade grub2-debugsourceUpgrade grub2-tools-minimalUpgrade grub2-tools-debuginfoUpgrade grub2-efi-x64Upgrade grub2-pc-modulesUpgrade grub2-efi-aa64-modulesUpgrade grub2Upgrade grub2-tools-extra-debuginfoUpgrade grub2-efi-ia32-cdbootUpgrade grub2-ppc64le-modulesUpgrade grub2-pcUpgrade fwupd-debugsourceUpgrade grub2-efi-x64-modules | Mar 3, 2021 | Mar 2, 2021 |
| Debian | — | Upgrade grub2 | Mar 4, 2021 | Mar 4, 2021 |
| Gentoo Linux | — | Upgrade sys-devel/grub. | May 3, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp10 | — | Upgrade grub2-pcUpgrade grub2-efi-x64Upgrade grub2-tools-minimalUpgrade grub2-toolsUpgrade grub2-tools-efiUpgrade grub2-pc-modulesUpgrade grub2-tools-extraUpgrade grub2-commonUpgrade grub2-efi-x64-modules | Feb 13, 2023 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp2 | — | Upgrade grub2Upgrade grub2-pcUpgrade grub2-toolsUpgrade grub2-tools-minimalUpgrade grub2-efi-x64Upgrade grub2-commonUpgrade grub2-pc-modulesUpgrade grub2-tools-extra | Sep 16, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp3 | — | Upgrade grub2-toolsUpgrade grub2-commonUpgrade grub2-efi-x64-cdbootUpgrade grub2-tools-extraUpgrade grub2-tools-minimalUpgrade grub2-efi-x64Upgrade grub2-pc-modulesUpgrade grub2-pcUpgrade grub2-efi-x64-modulesUpgrade grub2 | Apr 30, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp5 | — | Upgrade grub2Upgrade grub2-pcUpgrade grub2-efi-x64Upgrade grub2-tools-minimalUpgrade grub2-efi-ia32-cdbootUpgrade grub2-efi-x64-modulesUpgrade grub2-pc-modulesUpgrade grub2-commonUpgrade grub2-efi-ia32Upgrade grub2-toolsUpgrade grub2-efi-x64-cdbootUpgrade grub2-tools-extra | Jul 19, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp8 | — | Upgrade grub2-commonUpgrade grub2-efi-aa64Upgrade grub2-toolsUpgrade grub2-tools-extraUpgrade grub2-tools-minimalUpgrade grub2-efi-aa64-cdbootUpgrade grub2-efi-aa64-modules | May 18, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp9 | — | Upgrade grub2-toolsUpgrade grub2-tools-minimalUpgrade grub2-efi-aa64-modulesUpgrade grub2-tools-extraUpgrade grub2-efi-aa64Upgrade grub2-common | Jun 2, 2021 | Mar 3, 2021 |
| Oracle_linux | — | Upgrade grub2-commonUpgrade grub2-tools-minimalUpgrade grub2-efi-aa64-modulesUpgrade grub2-tools-efiUpgrade grub2-tools-extraUpgrade grub2-efi-x64-modulesUpgrade grub2-toolsUpgrade grub2Upgrade grub2-efi-ia32-cdbootUpgrade grub2-efi-ia32-modulesUpgrade grub2-efi-aa64-cdbootUpgrade grub2-efi-aa64Upgrade grub2-efi-x64Upgrade grub2-efi-x64-cdbootUpgrade grub2-efi-ia32Upgrade grub2-pcUpgrade grub2-pc-modules | Mar 3, 2021 | Mar 2, 2021 |
| Redhat_linux | — | Upgrade grub2-ppc64-modulesUpgrade grub2-efi-x64Upgrade grub2-commonUpgrade grub2-efi-ia32-modulesUpgrade grub2-tools-minimalUpgrade grub2-ppc-modulesUpgrade grub2-efi-ia32-cdbootUpgrade fwupd-debuginfoUpgrade fwupd-tests-debuginfoUpgrade grub2-efi-x64-modulesUpgrade grub2-tools-efi-debuginfoUpgrade grub2-tools-debuginfoUpgrade grub2-toolsNo solution existsUpgrade grub2-debugsourceUpgrade shim-ia32Upgrade grub2-tools-extraUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-ia32Upgrade fwupdUpgrade shim-unsigned-x64Upgrade grub2Upgrade grub2-debuginfoUpgrade grub2-tools-efiUpgrade grub2-pcUpgrade shim-x64Upgrade fwupd-debugsourceUpgrade grub2-efi-x64-cdbootUpgrade grub2-pc-modulesUpgrade grub2-tools-minimal-debuginfoUpgrade grub2-ppc64le-modulesUpgrade grub2-tools-extra-debuginfo | Mar 3, 2021 | Mar 2, 2021 |
| Rocky_linux | — | Upgrade fwupd-debuginfoUpgrade fwupd-debugsourceUpgrade fwupd | Mar 12, 2024 | Mar 3, 2021 |
| Suse | — | Upgrade grub2-i386-efi-debugUpgrade grub2-i386-pc-debugUpgrade grub2-i386-efiUpgrade grub2-systemd-sleep-pluginUpgrade grub2-powerpc-ieee1275Upgrade grub2-x86_64-efiUpgrade grub2-arm64-efiUpgrade grub2-x86_64-efi-debugUpgrade grub2-branding-upstreamUpgrade grub2-x86_64-xenUpgrade grub2-i386-pcUpgrade grub2Upgrade grub2-i386-xenUpgrade grub2-s390x-emuUpgrade grub2-snapper-plugin | Mar 3, 2021 | Mar 2, 2021 |
| Ubuntu | — | Upgrade grub-efi-amd64-signedUpgrade grub-efi-amd64-binUpgrade grub-efi-arm64-signedUpgrade grub-efi-arm64-bin | Jun 18, 2021 | Mar 2, 2021 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Mar 3, 2021 |
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