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 | alma-upgrade-shim-aa64alma-upgrade-shim-ia32alma-upgrade-shim-unsigned-aarch64alma-upgrade-shim-unsigned-x64alma-upgrade-shim-x64 | May 4, 2022 | Mar 3, 2021 | |
| Alpine Linux | alpine-linux-upgrade-grub | Aug 22, 2024 | Mar 3, 2021 | |
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-grub2amazon-linux-ami-2-upgrade-grub2-commonamazon-linux-ami-2-upgrade-grub2-debuginfoamazon-linux-ami-2-upgrade-grub2-efi-aa64amazon-linux-ami-2-upgrade-grub2-efi-aa64-cdbootamazon-linux-ami-2-upgrade-grub2-efi-aa64-ec2amazon-linux-ami-2-upgrade-grub2-efi-aa64-modulesamazon-linux-ami-2-upgrade-grub2-efi-x64amazon-linux-ami-2-upgrade-grub2-efi-x64-cdbootamazon-linux-ami-2-upgrade-grub2-efi-x64-ec2amazon-linux-ami-2-upgrade-grub2-efi-x64-modulesamazon-linux-ami-2-upgrade-grub2-emuamazon-linux-ami-2-upgrade-grub2-emu-modulesamazon-linux-ami-2-upgrade-grub2-pcamazon-linux-ami-2-upgrade-grub2-pc-modulesamazon-linux-ami-2-upgrade-grub2-toolsamazon-linux-ami-2-upgrade-grub2-tools-efiamazon-linux-ami-2-upgrade-grub2-tools-extraamazon-linux-ami-2-upgrade-grub2-tools-minimal | Jul 19, 2021 | Mar 3, 2021 | |
| Arch Linux | arch-linux-upgrade-latest | Jul 11, 2025 | Mar 3, 2021 | |
| Centos_linux | — | centos-upgrade-fwupdcentos-upgrade-fwupd-debuginfocentos-upgrade-fwupd-debugsourcecentos-upgrade-fwupd-tests-debuginfocentos-upgrade-grub2centos-upgrade-grub2-commoncentos-upgrade-grub2-debuginfocentos-upgrade-grub2-debugsourcecentos-upgrade-grub2-efi-aa64-modulescentos-upgrade-grub2-efi-ia32centos-upgrade-grub2-efi-ia32-cdbootcentos-upgrade-grub2-efi-ia32-modulescentos-upgrade-grub2-efi-x64centos-upgrade-grub2-efi-x64-cdbootcentos-upgrade-grub2-efi-x64-modulescentos-upgrade-grub2-pccentos-upgrade-grub2-pc-modulescentos-upgrade-grub2-ppc-modulescentos-upgrade-grub2-ppc64-modulescentos-upgrade-grub2-ppc64le-modulescentos-upgrade-grub2-toolscentos-upgrade-grub2-tools-debuginfocentos-upgrade-grub2-tools-eficentos-upgrade-grub2-tools-efi-debuginfocentos-upgrade-grub2-tools-extracentos-upgrade-grub2-tools-extra-debuginfocentos-upgrade-grub2-tools-minimalcentos-upgrade-grub2-tools-minimal-debuginfocentos-upgrade-shim-ia32centos-upgrade-shim-x64 | Mar 3, 2021 | Mar 2, 2021 |
| Debian | debian-upgrade-grub2 | Mar 4, 2021 | Mar 4, 2021 | |
| Gentoo Linux | gentoo-linux-upgrade-sys-devel-grub | May 3, 2021 | Mar 3, 2021 | |
| Huawei Euleros 2_0_sp10 | huawei-euleros-2_0_sp10-upgrade-grub2-commonhuawei-euleros-2_0_sp10-upgrade-grub2-efi-x64huawei-euleros-2_0_sp10-upgrade-grub2-efi-x64-moduleshuawei-euleros-2_0_sp10-upgrade-grub2-pchuawei-euleros-2_0_sp10-upgrade-grub2-pc-moduleshuawei-euleros-2_0_sp10-upgrade-grub2-toolshuawei-euleros-2_0_sp10-upgrade-grub2-tools-efihuawei-euleros-2_0_sp10-upgrade-grub2-tools-extrahuawei-euleros-2_0_sp10-upgrade-grub2-tools-minimal | Feb 13, 2023 | Mar 3, 2021 | |
| Huawei Euleros 2_0_sp2 | huawei-euleros-2_0_sp2-upgrade-grub2huawei-euleros-2_0_sp2-upgrade-grub2-commonhuawei-euleros-2_0_sp2-upgrade-grub2-efi-x64huawei-euleros-2_0_sp2-upgrade-grub2-pchuawei-euleros-2_0_sp2-upgrade-grub2-pc-moduleshuawei-euleros-2_0_sp2-upgrade-grub2-toolshuawei-euleros-2_0_sp2-upgrade-grub2-tools-extrahuawei-euleros-2_0_sp2-upgrade-grub2-tools-minimal | Sep 16, 2021 | Mar 3, 2021 | |
| Huawei Euleros 2_0_sp3 | huawei-euleros-2_0_sp3-upgrade-grub2huawei-euleros-2_0_sp3-upgrade-grub2-commonhuawei-euleros-2_0_sp3-upgrade-grub2-efi-x64huawei-euleros-2_0_sp3-upgrade-grub2-efi-x64-cdboothuawei-euleros-2_0_sp3-upgrade-grub2-efi-x64-moduleshuawei-euleros-2_0_sp3-upgrade-grub2-pchuawei-euleros-2_0_sp3-upgrade-grub2-pc-moduleshuawei-euleros-2_0_sp3-upgrade-grub2-toolshuawei-euleros-2_0_sp3-upgrade-grub2-tools-extrahuawei-euleros-2_0_sp3-upgrade-grub2-tools-minimal | Apr 30, 2021 | Mar 3, 2021 | |
| Huawei Euleros 2_0_sp5 | huawei-euleros-2_0_sp5-upgrade-grub2huawei-euleros-2_0_sp5-upgrade-grub2-commonhuawei-euleros-2_0_sp5-upgrade-grub2-efi-ia32huawei-euleros-2_0_sp5-upgrade-grub2-efi-ia32-cdboothuawei-euleros-2_0_sp5-upgrade-grub2-efi-x64huawei-euleros-2_0_sp5-upgrade-grub2-efi-x64-cdboothuawei-euleros-2_0_sp5-upgrade-grub2-efi-x64-moduleshuawei-euleros-2_0_sp5-upgrade-grub2-pchuawei-euleros-2_0_sp5-upgrade-grub2-pc-moduleshuawei-euleros-2_0_sp5-upgrade-grub2-toolshuawei-euleros-2_0_sp5-upgrade-grub2-tools-extrahuawei-euleros-2_0_sp5-upgrade-grub2-tools-minimal | Jul 19, 2021 | Mar 3, 2021 | |
| Huawei Euleros 2_0_sp8 | huawei-euleros-2_0_sp8-upgrade-grub2-commonhuawei-euleros-2_0_sp8-upgrade-grub2-efi-aa64huawei-euleros-2_0_sp8-upgrade-grub2-efi-aa64-cdboothuawei-euleros-2_0_sp8-upgrade-grub2-efi-aa64-moduleshuawei-euleros-2_0_sp8-upgrade-grub2-toolshuawei-euleros-2_0_sp8-upgrade-grub2-tools-extrahuawei-euleros-2_0_sp8-upgrade-grub2-tools-minimal | May 18, 2021 | Mar 3, 2021 | |
| Huawei Euleros 2_0_sp9 | huawei-euleros-2_0_sp9-upgrade-grub2-commonhuawei-euleros-2_0_sp9-upgrade-grub2-efi-aa64huawei-euleros-2_0_sp9-upgrade-grub2-efi-aa64-moduleshuawei-euleros-2_0_sp9-upgrade-grub2-toolshuawei-euleros-2_0_sp9-upgrade-grub2-tools-extrahuawei-euleros-2_0_sp9-upgrade-grub2-tools-minimal | Jun 2, 2021 | Mar 3, 2021 | |
| Oracle_linux | — | oracle-linux-upgrade-grub2oracle-linux-upgrade-grub2-commonoracle-linux-upgrade-grub2-efi-aa64oracle-linux-upgrade-grub2-efi-aa64-cdbootoracle-linux-upgrade-grub2-efi-aa64-modulesoracle-linux-upgrade-grub2-efi-ia32oracle-linux-upgrade-grub2-efi-ia32-cdbootoracle-linux-upgrade-grub2-efi-ia32-modulesoracle-linux-upgrade-grub2-efi-x64oracle-linux-upgrade-grub2-efi-x64-cdbootoracle-linux-upgrade-grub2-efi-x64-modulesoracle-linux-upgrade-grub2-pcoracle-linux-upgrade-grub2-pc-modulesoracle-linux-upgrade-grub2-toolsoracle-linux-upgrade-grub2-tools-efioracle-linux-upgrade-grub2-tools-extraoracle-linux-upgrade-grub2-tools-minimal | Mar 3, 2021 | Mar 2, 2021 |
| Redhat_linux | redhat-upgrade-fwupdredhat-upgrade-fwupd-debuginforedhat-upgrade-fwupd-debugsourceredhat-upgrade-fwupd-tests-debuginforedhat-upgrade-grub2redhat-upgrade-grub2-commonredhat-upgrade-grub2-debuginforedhat-upgrade-grub2-debugsourceredhat-upgrade-grub2-efi-aa64-modulesredhat-upgrade-grub2-efi-ia32redhat-upgrade-grub2-efi-ia32-cdbootredhat-upgrade-grub2-efi-ia32-modulesredhat-upgrade-grub2-efi-x64redhat-upgrade-grub2-efi-x64-cdbootredhat-upgrade-grub2-efi-x64-modulesredhat-upgrade-grub2-pcredhat-upgrade-grub2-pc-modulesredhat-upgrade-grub2-ppc-modulesredhat-upgrade-grub2-ppc64-modulesredhat-upgrade-grub2-ppc64le-modulesredhat-upgrade-grub2-toolsredhat-upgrade-grub2-tools-debuginforedhat-upgrade-grub2-tools-efiredhat-upgrade-grub2-tools-efi-debuginforedhat-upgrade-grub2-tools-extraredhat-upgrade-grub2-tools-extra-debuginforedhat-upgrade-grub2-tools-minimalredhat-upgrade-grub2-tools-minimal-debuginforedhat-upgrade-shim-ia32redhat-upgrade-shim-unsigned-x64redhat-upgrade-shim-x64 | Mar 3, 2021 | Mar 2, 2021 | |
| Rocky_linux | rocky-upgrade-fwupdrocky-upgrade-fwupd-debuginforocky-upgrade-fwupd-debugsource | Mar 12, 2024 | Mar 3, 2021 | |
| Suse | — | suse-upgrade-grub2suse-upgrade-grub2-arm64-efisuse-upgrade-grub2-branding-upstreamsuse-upgrade-grub2-i386-efisuse-upgrade-grub2-i386-efi-debugsuse-upgrade-grub2-i386-pcsuse-upgrade-grub2-i386-pc-debugsuse-upgrade-grub2-i386-xensuse-upgrade-grub2-powerpc-ieee1275suse-upgrade-grub2-s390x-emususe-upgrade-grub2-snapper-pluginsuse-upgrade-grub2-systemd-sleep-pluginsuse-upgrade-grub2-x86_64-efisuse-upgrade-grub2-x86_64-efi-debugsuse-upgrade-grub2-x86_64-xen | Mar 3, 2021 | Mar 2, 2021 |
| Ubuntu | ubuntu-upgrade-grub-efi-amd64-binubuntu-upgrade-grub-efi-amd64-signedubuntu-upgrade-grub-efi-arm64-binubuntu-upgrade-grub-efi-arm64-signed | Jun 18, 2021 | Mar 2, 2021 | |
| Vmware Photon_os | vmware-photon_os_update_tdnf | Jan 20, 2025 | Mar 3, 2021 |
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