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.
CVSS Details
- CVSS 3.1 Base Score: 7.6
- CVSS 3.1 Vector: (CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade shim-unsigned-x64Upgrade shim-aa64Upgrade shim-x64Upgrade shim-ia32Upgrade shim-unsigned-aarch64 | 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-modulesUpgrade grub2-commonUpgrade grub2-tools-extraUpgrade grub2-tools-efiUpgrade grub2-efi-aa64Upgrade grub2-efi-x64-ec2Upgrade grub2-efi-aa64-modulesUpgrade grub2-efi-aa64-cdbootUpgrade grub2-pc-modulesUpgrade grub2-pcUpgrade grub2-efi-x64-cdbootUpgrade grub2-emuUpgrade grub2Upgrade grub2-toolsUpgrade grub2-tools-minimalUpgrade grub2-debuginfoUpgrade grub2-efi-x64Upgrade grub2-emu-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-efi-aa64-modulesUpgrade grub2-efi-ia32-cdbootUpgrade grub2-tools-efiUpgrade grub2-ppc64-modulesUpgrade grub2-tools-extraUpgrade fwupdUpgrade grub2-tools-extra-debuginfoUpgrade grub2-efi-x64-modulesUpgrade fwupd-tests-debuginfoUpgrade grub2-tools-efi-debuginfoUpgrade grub2-commonUpgrade shim-x64Upgrade fwupd-debugsourceUpgrade grub2-pc-modulesUpgrade grub2Upgrade shim-ia32Upgrade grub2-efi-ia32Upgrade grub2-tools-minimalUpgrade grub2-pcUpgrade grub2-ppc64le-modulesUpgrade grub2-efi-x64Upgrade grub2-debuginfoUpgrade grub2-ppc-modulesUpgrade fwupd-debuginfoUpgrade grub2-efi-ia32-modulesUpgrade grub2-tools-minimal-debuginfoUpgrade grub2-toolsUpgrade grub2-efi-x64-cdbootUpgrade grub2-debugsourceUpgrade 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 grub2Upgrade grub2-tools-extraUpgrade grub2-tools-minimalUpgrade grub2-efi-x64Upgrade grub2-pc-modulesUpgrade grub2-toolsUpgrade grub2-commonUpgrade grub2-pc | Sep 16, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp3 | — | Upgrade grub2-toolsUpgrade grub2-efi-x64Upgrade grub2Upgrade grub2-efi-x64-cdbootUpgrade grub2-pcUpgrade grub2-tools-extraUpgrade grub2-pc-modulesUpgrade grub2-commonUpgrade grub2-efi-x64-modulesUpgrade grub2-tools-minimal | Apr 30, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp5 | — | Upgrade grub2-tools-minimalUpgrade grub2-efi-x64-modulesUpgrade grub2-pc-modulesUpgrade grub2-tools-extraUpgrade grub2-efi-ia32Upgrade grub2-commonUpgrade grub2-efi-x64Upgrade grub2-toolsUpgrade grub2-efi-x64-cdbootUpgrade grub2-efi-ia32-cdbootUpgrade grub2-pcUpgrade grub2 | May 19, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp8 | — | Upgrade grub2-tools-extraUpgrade grub2-toolsUpgrade grub2-tools-minimalUpgrade grub2-efi-aa64-cdbootUpgrade grub2-efi-aa64Upgrade grub2-commonUpgrade grub2-efi-aa64-modules | May 18, 2021 | Mar 3, 2021 |
| Huawei Euleros 2_0_sp9 | — | Upgrade grub2-efi-aa64Upgrade grub2-commonUpgrade grub2-tools-minimalUpgrade grub2-toolsUpgrade grub2-efi-aa64-modulesUpgrade grub2-tools-extra | Jun 2, 2021 | Mar 3, 2021 |
| Oracle_linux | — | Upgrade grub2-tools-extraUpgrade grub2-commonUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-x64-modulesUpgrade grub2-efi-ia32-cdbootUpgrade grub2-tools-minimalUpgrade grub2-efi-ia32-modulesUpgrade grub2-pcUpgrade grub2-tools-efiUpgrade grub2-efi-aa64Upgrade grub2-efi-aa64-cdbootUpgrade grub2-efi-ia32Upgrade grub2-toolsUpgrade grub2-efi-x64Upgrade grub2-efi-x64-cdbootUpgrade grub2Upgrade grub2-pc-modules | Mar 3, 2021 | Mar 2, 2021 |
| Redhat_linux | — | Upgrade grub2-pc-modulesUpgrade grub2-efi-x64No solution existsUpgrade grub2-tools-minimal-debuginfoUpgrade grub2Upgrade grub2-pcUpgrade grub2-debuginfoUpgrade fwupd-debugsourceUpgrade grub2-tools-extra-debuginfoUpgrade fwupdUpgrade grub2-commonUpgrade grub2-ppc64le-modulesUpgrade shim-unsigned-x64Upgrade grub2-debugsourceUpgrade shim-ia32Upgrade grub2-tools-debuginfoUpgrade grub2-ppc-modulesUpgrade shim-x64Upgrade grub2-tools-minimalUpgrade grub2-efi-x64-modulesUpgrade fwupd-debuginfoUpgrade grub2-efi-ia32-cdbootUpgrade grub2-efi-x64-cdbootUpgrade grub2-tools-efi-debuginfoUpgrade fwupd-tests-debuginfoUpgrade grub2-toolsUpgrade grub2-tools-extraUpgrade grub2-efi-aa64-modulesUpgrade grub2-ppc64-modulesUpgrade grub2-efi-ia32Upgrade grub2-efi-ia32-modulesUpgrade grub2-tools-efi | Mar 3, 2021 | Mar 2, 2021 |
| Rocky_linux | — | Upgrade fwupd-debugsourceUpgrade fwupd-debuginfoUpgrade fwupd | Mar 12, 2024 | Mar 3, 2021 |
| Suse | — | Upgrade grub2-systemd-sleep-pluginUpgrade grub2-arm64-efiUpgrade grub2-x86_64-xenUpgrade grub2-snapper-pluginUpgrade grub2-x86_64-efiUpgrade grub2-powerpc-ieee1275Upgrade grub2-i386-pcUpgrade grub2-i386-pc-debugUpgrade grub2-x86_64-efi-debugUpgrade grub2-i386-efiUpgrade grub2-s390x-emuUpgrade grub2-i386-xenUpgrade grub2Upgrade grub2-i386-efi-debugUpgrade grub2-branding-upstream | 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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