BootHole advisories and additional resources

Upstream Grub2 project
- GRUB2 Git Repository
  - http://git.savannah.gnu.org/gitweb/?p=grub.git&view=view+git+repository
- GRUB Developer Mailing List
  - https://lists.gnu.org/mailman/listinfo/grub-devel/
Microsoft
- Security advisory
  - https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011
- Powershell script to help apply revocation list updates
  - https://aka.ms/DbxSplitScript
UEFI Forum
- Updated Revocation List
  - https://uefi.org/revocationlistfile
Canonical:
- Security advisory
  - https://ubuntu.com/security/notices/USN-4432-1
- KnowledgeBase article
  - https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass
Debian
- Security advisory
  - https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot
Red Hat
- Customer documentation
  - https://access.redhat.com/security/vulnerabilities/grub2bootloader
SUSE
- Security advisory:
  - https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/
- Knowledge Base article:
  - https://www.suse.com/support/kb/doc/?id=000019673
HP
- HPSBHF03678 rev. 1 - GRUB2 Bootloader Arbitrary Code Execution
  - https://support.hp.com/us-en/document/c06707446
VMware
- Security advisory
  - https://kb.vmware.com/s/article/80181

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