This file is the single source for SbatLevel revocations the format follows the variable payload and should not have any leading or trailing whitespace on the same line. Short descriptions of the revocations as well as CVE assignments (when available) should be provided when an entry is added. On systems that run shim, shim will manage these revocations. Sytems that never run shim, primarily Windows, but this applies to any OS that supports UEFI Secure Boot under the UEFI CA without shim can apply SBAT based revocations by setting the following variable from code running in boot services context. Name: SbatLevel Attributes: (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS) Namespace Guid: 605dab50-e046-4300-abb6-3dd810dd8b23 Variable content: Initialized, no revocations: sbat,1,2021030218 To Revoke GRUB2 binaries impacted by * CVE-2021-3695 * CVE-2021-3696 * CVE-2021-3697 * CVE-2022-28733 * CVE-2022-28734 * CVE-2022-28735 * CVE-2022-28736 sbat,1,2022052400 grub,2 and shim binaries impacted by * CVE-2022-28737 sbat,1,2022052400 shim,2 grub,2 Shim delivered both versions of these revocations with the same 2022052400 date stamp, once as an opt-in latest revocation with shim,2 and then as an automatic revocation without shim,2 To revoke GRUB2 grub binaries impacted by * CVE-2022-2601 * CVE-2022-3775 sbat,1,2022111500 shim,2 grub,3 To revoke Debian's grub.3 which missed the patches: sbat,1,2023012900 shim,2 grub,3 grub.debian,4 An additonal bug was fixed in shim that was not considered exploitable, can be revoked by setting: sbat,1,2023012950 shim,3 grub,3 grub.debian,4 shim did not deliver this payload at the time To Revoke GRUB2 binaries impacted by: * CVE-2023-4692 * CVE-2023-4693 These CVEs are in the ntfs module and vendors that do and do not ship this module as part of their signed binary are split. sbat,1,2023091900 shim,2 grub,4 Since not everyone has shipped updated GRUB packages, shim did not deliver this revocation at the time. To Revoke shim binaries impacted by: * CVE-2023-40547 * CVE-2023-40546 * CVE-2023-40548 * CVE-2023-40549 * CVE-2023-40550 * CVE-2023-40551 sbat,1,2024010900 shim,4 grub,3 grub.debian,4 Revocations for: - January 2024 shim CVEs - October 2023 grub CVEs - Debian/Ubuntu (peimage) CVE-2024-2312 sbat,1,2024040900 shim,4 grub,4 grub.peimage,2 Revocations for: - Februady 2025 GRUB CVEs sbat,1,2025021800 shim,4 grub,5