A flaw was found in grub2 in versions prior to 2.06. The option parser allows an attacker to write past the end of a heap-allocated buffer by calling certain commands with a large number of specific short forms of options. 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-ia32Upgrade shim-x64Upgrade 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-emuUpgrade grub2-pc-modulesUpgrade grub2-efi-x64-cdbootUpgrade grub2-tools-efiUpgrade grub2-emu-modulesUpgrade grub2-pcUpgrade grub2-efi-aa64Upgrade grub2-tools-extraUpgrade grub2-efi-aa64-cdbootUpgrade grub2-commonUpgrade grub2-efi-x64-modulesUpgrade grub2-tools-minimalUpgrade grub2-toolsUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-x64-ec2Upgrade grub2-debuginfoUpgrade grub2-efi-aa64-ec2Upgrade grub2Upgrade grub2-efi-x64 | 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-ppc64-modulesUpgrade grub2-ppc64le-modulesUpgrade shim-x64Upgrade shim-ia32Upgrade grub2-efi-x64-cdbootUpgrade grub2-tools-efiUpgrade grub2-efi-ia32Upgrade grub2Upgrade grub2-toolsUpgrade fwupd-debuginfoUpgrade grub2-tools-extraUpgrade grub2-efi-x64Upgrade grub2-tools-minimal-debuginfoUpgrade grub2-efi-ia32-modulesUpgrade grub2-pc-modulesUpgrade grub2-tools-extra-debuginfoUpgrade grub2-commonUpgrade grub2-efi-x64-modulesUpgrade grub2-tools-minimalUpgrade grub2-efi-ia32-cdbootUpgrade fwupd-debugsourceUpgrade fwupd-tests-debuginfoUpgrade grub2-pcUpgrade grub2-tools-efi-debuginfoUpgrade grub2-debugsourceUpgrade grub2-efi-aa64-modulesUpgrade grub2-debuginfoUpgrade fwupdUpgrade grub2-ppc-modulesUpgrade grub2-tools-debuginfo | 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-pc-modulesUpgrade grub2-pcUpgrade grub2Upgrade grub2-tools-extraUpgrade grub2-efi-x64Upgrade grub2-commonUpgrade grub2-tools-minimalUpgrade grub2-tools | Sep 16, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp3 | — | Upgrade grub2-efi-x64-modulesUpgrade grub2-commonUpgrade grub2-tools-extraUpgrade grub2-pc-modulesUpgrade grub2Upgrade grub2-efi-x64Upgrade grub2-efi-x64-cdbootUpgrade grub2-pcUpgrade grub2-toolsUpgrade grub2-tools-minimal | Apr 30, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp5 | — | Upgrade grub2-pcUpgrade grub2-efi-ia32-cdbootUpgrade grub2-efi-x64-modulesUpgrade grub2-efi-x64-cdbootUpgrade grub2-tools-minimalUpgrade grub2-pc-modulesUpgrade grub2-efi-x64Upgrade grub2-tools-extraUpgrade grub2-efi-ia32Upgrade grub2-commonUpgrade grub2Upgrade grub2-tools | May 19, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp8 | — | Upgrade grub2-efi-aa64Upgrade grub2-efi-aa64-modulesUpgrade grub2-efi-aa64-cdbootUpgrade grub2-tools-extraUpgrade grub2-toolsUpgrade grub2-tools-minimalUpgrade grub2-common | 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-commonUpgrade grub2-efi-aa64 | Jun 2, 2021 | Mar 3, 2021 |
| Oracle_linux | — | Upgrade grub2Upgrade grub2-pcUpgrade grub2-toolsUpgrade grub2-efi-x64-cdbootUpgrade grub2-efi-ia32-modulesUpgrade grub2-efi-ia32-cdbootUpgrade grub2-commonUpgrade grub2-efi-x64Upgrade grub2-tools-extraUpgrade grub2-tools-minimalUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-ia32Upgrade grub2-efi-aa64Upgrade grub2-efi-x64-modulesUpgrade grub2-tools-efiUpgrade grub2-pc-modulesUpgrade grub2-efi-aa64-cdboot | Mar 3, 2021 | Mar 2, 2021 |
| Redhat_linux | — | Upgrade fwupdUpgrade grub2-tools-extraUpgrade shim-x64Upgrade grub2-tools-extra-debuginfoUpgrade grub2-ppc-modulesUpgrade grub2-ppc64-modulesUpgrade grub2-efi-x64-modulesUpgrade grub2-tools-efi-debuginfoUpgrade shim-ia32Upgrade grub2-debuginfoUpgrade grub2-efi-aa64-modulesUpgrade grub2-commonUpgrade grub2-toolsUpgrade fwupd-debuginfoUpgrade grub2-debugsourceUpgrade shim-unsigned-x64Upgrade grub2-pc-modulesUpgrade fwupd-debugsourceNo solution existsUpgrade fwupd-tests-debuginfoUpgrade grub2-efi-x64Upgrade grub2-pcUpgrade grub2-tools-efiUpgrade grub2Upgrade grub2-tools-minimalUpgrade grub2-ppc64le-modulesUpgrade grub2-efi-ia32-modulesUpgrade grub2-tools-debuginfoUpgrade grub2-efi-x64-cdbootUpgrade grub2-efi-ia32-cdbootUpgrade grub2-efi-ia32Upgrade grub2-tools-minimal-debuginfo | Mar 3, 2021 | Mar 2, 2021 |
| Rocky_linux | — | Upgrade fwupdUpgrade fwupd-debuginfoUpgrade fwupd-debugsource | Mar 12, 2024 | Mar 3, 2021 |
| Suse | — | Upgrade grub2-x86_64-efiUpgrade grub2-x86_64-xenUpgrade grub2-i386-pcUpgrade grub2-systemd-sleep-pluginUpgrade grub2-x86_64-efi-debugUpgrade grub2-snapper-pluginUpgrade grub2-arm64-efiUpgrade grub2-powerpc-ieee1275Upgrade grub2-i386-xenUpgrade grub2-s390x-emuUpgrade grub2-i386-efi-debugUpgrade grub2Upgrade grub2-i386-pc-debugUpgrade grub2-i386-efiUpgrade grub2-branding-upstream | Mar 3, 2021 | Mar 2, 2021 |
| Ubuntu | — | Upgrade grub-efi-arm64-signedUpgrade grub-efi-arm64-binUpgrade grub-efi-amd64-signedUpgrade grub-efi-amd64-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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