There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables; The handle_image() function takes into account the SizeOfRawData field from each section to be loaded. An attacker can leverage this to perform out-of-bound writes into memory. Arbitrary code execution is not discarded in such scenario.
CVSS Details
- CVSS 3.1 Base Score: 6.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade shim-x64Upgrade grub2-efi-x64-modulesUpgrade grub2-ppc64leUpgrade grub2-pc-modulesUpgrade grub2-efi-aa64-modulesUpgrade shim-aa64Upgrade grub2-commonUpgrade grub2-ppc64le-modulesUpgrade grub2-efi-ia32-cdbootUpgrade grub2-toolsUpgrade grub2-efi-aa64Upgrade grub2-efi-x64-cdbootUpgrade grub2-efi-ia32Upgrade grub2-efi-aa64-cdbootUpgrade grub2-tools-efiUpgrade grub2-efi-x64Upgrade grub2-pcUpgrade shim-ia32Upgrade grub2-tools-extraUpgrade grub2-tools-minimalUpgrade shim-unsigned-x64Upgrade grub2-efi-ia32-modules | Aug 24, 2022 | Jun 16, 2022 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Jul 20, 2023 |
| Centos_linux | — | Upgrade grub2-efi-x64Upgrade grub2-tools-efiUpgrade grub2-pc-modulesUpgrade grub2-tools-efi-debuginfoUpgrade grub2-tools-minimal-debuginfoUpgrade grub2-emu-debuginfoUpgrade mokutil-debugsourceUpgrade grub2-tools-minimalUpgrade grub2-debugsourceUpgrade grub2-efi-ia32Upgrade grub2-tools-extra-debuginfoUpgrade grub2-tools-extraUpgrade grub2-efi-x64-cdbootUpgrade grub2-tools-debuginfoUpgrade grub2-efi-aa64-modulesUpgrade grub2-efi-ia32-modulesUpgrade shim-ia32Upgrade grub2-commonUpgrade grub2-toolsUpgrade grub2-pcUpgrade mokutilUpgrade grub2-debuginfoUpgrade grub2-efi-ia32-cdbootUpgrade grub2-efi-x64-modulesUpgrade mokutil-debuginfoUpgrade shim-x64Upgrade grub2-ppc64le-modules | Jun 17, 2022 | Jun 16, 2022 |
| Debian | — | Upgrade shim | Jul 30, 2024 | Jul 20, 2023 |
| Dell Powerstore Dsa2023173 | — | Upgrade Dell PowerStoreOS to the latest version | Oct 23, 2025 | Jun 21, 2023 |
| Gentoo Linux | — | Upgrade sys-boot/grub. | Sep 26, 2022 | Sep 25, 2022 |
| Huawei Euleros 2_0_sp10 | — | Upgrade shim | Nov 3, 2022 | Aug 16, 2022 |
| Huawei Euleros 2_0_sp3 | — | Upgrade shim-x64Upgrade mokutilUpgrade shim-unsigned-x64 | Oct 28, 2022 | Aug 16, 2022 |
| Huawei Euleros 2_0_sp5 | — | Upgrade shim-unsigned-x64 | Aug 18, 2022 | Aug 16, 2022 |
| Huawei Euleros 2_0_sp8 | — | Upgrade shim-aa64 | Aug 18, 2022 | Aug 16, 2022 |
| Huawei Euleros 2_0_sp9 | — | Upgrade shim-aa64-storageUpgrade shim | Sep 14, 2022 | Aug 16, 2022 |
| Oracle_linux | — | Upgrade grub2-efi-x64-cdbootUpgrade grub2-efi-aa64Upgrade grub2-pc-modulesUpgrade grub2-pcUpgrade grub2-efi-x64-modulesUpgrade grub2-efi-x64Upgrade grub2-tools-efiUpgrade grub2-efi-aa64-modulesUpgrade grub2-toolsUpgrade grub2-efi-ia32Upgrade shim-ia32Upgrade mokutilUpgrade grub2-efi-aa64-cdbootUpgrade grub2-tools-minimalUpgrade grub2-efi-ia32-modulesUpgrade shim-x64Upgrade grub2-tools-extraUpgrade grub2-efi-ia32-cdbootUpgrade grub2-common | Jun 8, 2022 | Jun 7, 2022 |
| Redhat_linux | — | Upgrade grub2-efi-aa64-modulesUpgrade grub2-toolsUpgrade grub2-commonUpgrade grub2-tools-extra-debuginfoUpgrade grub2-tools-efi-debuginfoUpgrade shim-x64Upgrade grub2-tools-efiUpgrade grub2-tools-extraUpgrade grub2-tools-debuginfoUpgrade grub2-tools-minimalUpgrade grub2-efi-ia32-cdbootUpgrade mokutilUpgrade grub2-emu-debuginfoUpgrade shim-ia32Upgrade grub2-debugsourceUpgrade grub2-efi-ia32-modulesUpgrade grub2-efi-x64Upgrade grub2-tools-minimal-debuginfoUpgrade grub2-pcUpgrade grub2-efi-ia32Upgrade grub2-pc-modulesUpgrade shim-unsigned-x64Upgrade grub2-efi-x64-modulesUpgrade grub2-ppc64le-modulesUpgrade grub2-debuginfoUpgrade mokutil-debuginfoUpgrade mokutil-debugsourceNo solution existsUpgrade grub2-efi-x64-cdboot | Jun 17, 2022 | Jun 16, 2022 |
| Rocky_linux | — | Upgrade grub2-efi-ia32Upgrade shim-x64Upgrade grub2-tools-minimalUpgrade grub2-tools-efiUpgrade grub2-tools-extraUpgrade mokutil-debuginfoUpgrade grub2-efi-x64-cdbootUpgrade grub2-tools-extra-debuginfoUpgrade shim-unsigned-x64Upgrade grub2-efi-ia32-cdbootUpgrade grub2-efi-x64Upgrade grub2-pcUpgrade grub2-tools-efi-debuginfoUpgrade grub2-tools-debuginfoUpgrade grub2-debuginfoUpgrade mokutil-debugsourceUpgrade grub2-tools-minimal-debuginfoUpgrade mokutilUpgrade grub2-toolsUpgrade grub2-debugsourceUpgrade shim-ia32 | Mar 12, 2024 | Jul 20, 2023 |
| Suse | — | Upgrade shim | Mar 31, 2023 | Mar 30, 2023 |
| Ubuntu | — | Upgrade shimUpgrade grub-efi-amd64-signedUpgrade shim-signedUpgrade grub-efi-arm64Upgrade grub-efi-amd64-binUpgrade grub-efi-amd64Upgrade grub-efi-arm64-binUpgrade grub-efi-arm64-signed | Sep 18, 2023 | Jul 20, 2023 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Jul 20, 2023 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub