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A flaw was found in grub2 in versions prior to 2.06. Setparam_prefix() in the menu rendering code performs a length calculation on the assumption that expressing a quoted single quote will require 3 characters, while it actually requires 4 characters which allows an attacker to corrupt memory by one byte for each quote in the input. 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-aa64Upgrade shim-unsigned-aarch64Upgrade shim-x64Upgrade shim-unsigned-x64Upgrade shim-ia32 | May 4, 2022 | Mar 3, 2021 |
| Alpine Linux | — | Upgrade grub | Aug 22, 2024 | Mar 3, 2021 |
| Amazon Linux Ami 2 | — | Upgrade grub2-toolsUpgrade grub2-emu-modulesUpgrade grub2-efi-aa64Upgrade grub2-efi-x64-cdbootUpgrade grub2-tools-efiUpgrade grub2-debuginfoUpgrade grub2-emuUpgrade grub2Upgrade grub2-efi-x64Upgrade grub2-tools-minimalUpgrade grub2-efi-x64-ec2Upgrade grub2-efi-x64-modulesUpgrade grub2-commonUpgrade grub2-tools-extraUpgrade grub2-efi-aa64-ec2Upgrade grub2-efi-aa64-modulesUpgrade grub2-efi-aa64-cdbootUpgrade grub2-pc-modulesUpgrade grub2-pc | 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-minimalUpgrade grub2-pc-modulesUpgrade grub2-efi-aa64-modulesUpgrade grub2-ppc64le-modulesUpgrade grub2-tools-minimal-debuginfoUpgrade shim-x64Upgrade grub2-tools-efi-debuginfoUpgrade grub2-efi-x64Upgrade fwupd-debugsourceUpgrade grub2-tools-extra-debuginfoUpgrade grub2-efi-x64-cdbootUpgrade grub2-efi-ia32Upgrade fwupd-tests-debuginfoUpgrade grub2-tools-extraUpgrade grub2-tools-efiUpgrade grub2-commonUpgrade grub2-efi-x64-modulesUpgrade grub2-ppc-modulesUpgrade grub2-ppc64-modulesUpgrade grub2Upgrade fwupdUpgrade grub2-toolsUpgrade grub2-debuginfoUpgrade grub2-tools-debuginfoUpgrade fwupd-debuginfoUpgrade grub2-efi-ia32-modulesUpgrade grub2-efi-ia32-cdbootUpgrade grub2-pcUpgrade grub2-debugsourceUpgrade shim-ia32 | 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-pcUpgrade grub2-pc-modulesUpgrade grub2-efi-x64Upgrade grub2-tools-extraUpgrade grub2-tools-minimalUpgrade grub2Upgrade grub2-toolsUpgrade grub2-common | Sep 16, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp3 | — | Upgrade grub2Upgrade grub2-commonUpgrade grub2-pc-modulesUpgrade grub2-tools-minimalUpgrade grub2-efi-x64-modulesUpgrade grub2-pcUpgrade grub2-toolsUpgrade grub2-efi-x64Upgrade grub2-tools-extraUpgrade grub2-efi-x64-cdboot | Apr 30, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp5 | — | Upgrade grub2-efi-x64-modulesUpgrade grub2-efi-ia32-cdbootUpgrade grub2-pc-modulesUpgrade grub2-efi-x64Upgrade grub2Upgrade grub2-commonUpgrade grub2-efi-x64-cdbootUpgrade grub2-efi-ia32Upgrade grub2-tools-extra | May 19, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp8 | — | Upgrade grub2-commonUpgrade grub2-toolsUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-aa64-cdbootUpgrade grub2-tools-extraUpgrade grub2-tools-minimalUpgrade grub2-efi-aa64 | May 18, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp9 | — | Upgrade grub2-efi-aa64Upgrade grub2-tools-minimalUpgrade grub2-tools-extraUpgrade grub2-commonUpgrade grub2-efi-aa64-modulesUpgrade grub2-tools | Jun 2, 2021 | Mar 3, 2021 |
| Oracle_linux | — | Upgrade grub2-efi-x64Upgrade grub2Upgrade grub2-efi-ia32Upgrade grub2-efi-aa64-cdbootUpgrade grub2-pc-modulesUpgrade grub2-tools-efiUpgrade grub2-efi-x64-cdbootUpgrade grub2-tools-extraUpgrade grub2-tools-minimalUpgrade grub2-efi-ia32-modulesUpgrade grub2-efi-x64-modulesUpgrade grub2-pcUpgrade grub2-toolsUpgrade grub2-efi-ia32-cdbootUpgrade grub2-efi-aa64Upgrade grub2-commonUpgrade grub2-efi-aa64-modules | Mar 3, 2021 | Mar 2, 2021 |
| Redhat_linux | — | Upgrade grub2-ppc64le-modulesUpgrade grub2-tools-extraUpgrade grub2-efi-x64-cdbootUpgrade grub2-pc-modulesUpgrade fwupd-debuginfoUpgrade fwupd-tests-debuginfoUpgrade grub2-debugsourceUpgrade grub2-efi-x64Upgrade shim-x64Upgrade fwupd-debugsourceUpgrade grub2-tools-efiUpgrade grub2-tools-minimal-debuginfoUpgrade grub2-efi-ia32Upgrade grub2-tools-efi-debuginfoUpgrade grub2-tools-minimalUpgrade grub2-tools-extra-debuginfoUpgrade grub2-toolsUpgrade grub2-ppc64-modulesUpgrade grub2-tools-debuginfoUpgrade grub2-efi-ia32-modulesUpgrade grub2-efi-x64-modulesUpgrade shim-unsigned-x64Upgrade grub2-ppc-modulesUpgrade grub2-pcUpgrade fwupdUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-ia32-cdbootUpgrade grub2-debuginfoNo solution existsUpgrade shim-ia32Upgrade grub2-commonUpgrade grub2 | Mar 3, 2021 | Mar 2, 2021 |
| Rocky_linux | — | Upgrade fwupd-debugsourceUpgrade fwupd-debuginfoUpgrade fwupd | Mar 12, 2024 | Mar 3, 2021 |
| Suse | — | Upgrade grub2-x86_64-xenUpgrade grub2-powerpc-ieee1275Upgrade grub2-i386-pc-debugUpgrade grub2-i386-efi-debugUpgrade grub2-i386-xenUpgrade grub2Upgrade grub2-snapper-pluginUpgrade grub2-s390x-emuUpgrade grub2-branding-upstreamUpgrade grub2-x86_64-efiUpgrade grub2-i386-efiUpgrade grub2-arm64-efiUpgrade grub2-systemd-sleep-pluginUpgrade grub2-i386-pcUpgrade grub2-x86_64-efi-debug | Mar 3, 2021 | Mar 2, 2021 |
| Ubuntu | — | Upgrade grub-efi-arm64-binUpgrade grub-efi-amd64-binUpgrade grub-efi-arm64-signedUpgrade grub-efi-amd64-signed | 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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