A flaw was found in grub2 in versions prior to 2.06. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the Secure Boot mechanism. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade shim-unsigned-x64Upgrade shim-unsigned-aarch64Upgrade shim-x64Upgrade shim-ia32Upgrade shim-aa64 | May 4, 2022 | Mar 3, 2021 |
| Alpine Linux | — | Upgrade grub | Aug 22, 2024 | Mar 3, 2021 |
| Amazon Linux Ami 2 | — | Upgrade grub2-pc-modulesUpgrade grub2-efi-x64-ec2Upgrade grub2-commonUpgrade grub2-efi-aa64-cdbootUpgrade grub2-efi-aa64Upgrade grub2-tools-extraUpgrade grub2-tools-efiUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-aa64-ec2Upgrade grub2-efi-x64-modulesUpgrade grub2-tools-minimalUpgrade grub2-efi-x64Upgrade grub2-efi-x64-cdbootUpgrade grub2-toolsUpgrade grub2-emu-modulesUpgrade grub2-pcUpgrade grub2-emuUpgrade grub2-debuginfoUpgrade grub2 | 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-pc-modulesUpgrade grub2-ppc64le-modulesUpgrade grub2-tools-debuginfoUpgrade fwupd-debuginfoUpgrade grub2Upgrade grub2-pcUpgrade grub2-efi-ia32Upgrade shim-ia32Upgrade grub2-efi-ia32-modulesUpgrade grub2-toolsUpgrade grub2-tools-minimalUpgrade grub2-tools-minimal-debuginfoUpgrade grub2-ppc-modulesUpgrade grub2-efi-x64Upgrade grub2-debuginfoUpgrade grub2-efi-x64-cdbootUpgrade grub2-debugsourceUpgrade grub2-tools-extraUpgrade grub2-tools-efiUpgrade grub2-efi-ia32-cdbootUpgrade fwupdUpgrade grub2-ppc64-modulesUpgrade fwupd-debugsourceUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-x64-modulesUpgrade grub2-tools-extra-debuginfoUpgrade fwupd-tests-debuginfoUpgrade grub2-tools-efi-debuginfoUpgrade shim-x64Upgrade grub2-common | 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_sp2 | — | Upgrade grub2-tools-extraUpgrade grub2Upgrade grub2-efi-x64Upgrade grub2-tools-minimalUpgrade grub2-toolsUpgrade grub2-pcUpgrade grub2-pc-modulesUpgrade grub2-common | Sep 16, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp3 | — | Upgrade grub2-efi-x64Upgrade grub2-pcUpgrade grub2-efi-x64-cdbootUpgrade grub2Upgrade grub2-toolsUpgrade grub2-commonUpgrade grub2-tools-minimalUpgrade grub2-tools-extraUpgrade grub2-efi-x64-modulesUpgrade grub2-pc-modules | Apr 30, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp5 | — | Upgrade grub2-pc-modulesUpgrade grub2-tools-extraUpgrade grub2-efi-ia32Upgrade grub2-efi-x64-modulesUpgrade grub2-commonUpgrade grub2-tools-minimalUpgrade grub2-efi-ia32-cdbootUpgrade grub2-toolsUpgrade grub2-efi-x64Upgrade grub2Upgrade grub2-pcUpgrade grub2-efi-x64-cdboot | May 19, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp8 | — | Upgrade grub2-commonUpgrade grub2-efi-aa64Upgrade grub2-efi-aa64-modulesUpgrade grub2-toolsUpgrade grub2-efi-aa64-cdbootUpgrade grub2-tools-extraUpgrade grub2-tools-minimal | May 18, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp9 | — | Upgrade grub2-efi-aa64Upgrade grub2-commonUpgrade grub2-efi-aa64-modulesUpgrade grub2-toolsUpgrade grub2-tools-minimalUpgrade grub2-tools-extra | Jun 2, 2021 | Mar 3, 2021 |
| Oracle_linux | — | Upgrade grub2-efi-ia32-cdbootUpgrade grub2-efi-x64-modulesUpgrade grub2-tools-extraUpgrade grub2-commonUpgrade grub2-efi-aa64-modulesUpgrade grub2-tools-minimalUpgrade grub2-efi-aa64-cdbootUpgrade grub2-pcUpgrade grub2-efi-ia32-modulesUpgrade grub2-efi-ia32Upgrade grub2-toolsUpgrade grub2-tools-efiUpgrade grub2-efi-x64-cdbootUpgrade grub2-efi-x64Upgrade grub2-efi-aa64Upgrade grub2Upgrade grub2-pc-modules | Mar 3, 2021 | Mar 2, 2021 |
| Redhat_linux | — | No solution existsUpgrade grub2-debuginfoUpgrade shim-unsigned-x64Upgrade fwupd-debugsourceUpgrade grub2-pcUpgrade grub2-efi-x64Upgrade grub2Upgrade grub2-pc-modulesUpgrade grub2-commonUpgrade grub2-tools-extra-debuginfoUpgrade grub2-ppc64le-modulesUpgrade grub2-tools-minimal-debuginfoUpgrade fwupdUpgrade shim-x64Upgrade grub2-efi-ia32-cdbootUpgrade grub2-tools-minimalUpgrade shim-ia32Upgrade grub2-efi-x64-modulesUpgrade grub2-tools-efiUpgrade grub2-tools-debuginfoUpgrade grub2-ppc-modulesUpgrade grub2-efi-x64-cdbootUpgrade grub2-debugsourceUpgrade grub2-tools-extraUpgrade grub2-tools-efi-debuginfoUpgrade grub2-toolsUpgrade grub2-ppc64-modulesUpgrade fwupd-debuginfoUpgrade grub2-efi-ia32Upgrade fwupd-tests-debuginfoUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-ia32-modules | Mar 3, 2021 | Mar 2, 2021 |
| Rocky_linux | — | Upgrade fwupd-debugsourceUpgrade fwupdUpgrade fwupd-debuginfo | Mar 12, 2024 | Mar 3, 2021 |
| Suse | — | Upgrade grub2-x86_64-efiUpgrade grub2-x86_64-xenUpgrade grub2-systemd-sleep-pluginUpgrade grub2-snapper-pluginUpgrade grub2-arm64-efiUpgrade grub2-i386-pcUpgrade grub2-powerpc-ieee1275Upgrade grub2Upgrade grub2-i386-efi-debugUpgrade grub2-i386-xenUpgrade grub2-s390x-emuUpgrade grub2-i386-pc-debugUpgrade grub2-x86_64-efi-debugUpgrade grub2-branding-upstreamUpgrade grub2-i386-efi | Mar 3, 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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