grub-bhyve-bugs

FreeBSD grub-bhyve bootloader virtual machine escapes – CVE-2...

FreeBSD : grub2-bhyve -- multiple privilege escalations (9d6a48a7-4dad-11ea-8a1d-7085c25400ea)

Reno Robert reports : FreeBSD uses a two-process model for running a VM. For booting non-FreeBSD guests, a modified grub-emu is used grub-bhyve. Grub-bhyve executes command from guest grub.cfg file. This is a security problem because grub was never written to handle inputs from OS as untrusted. I...

grub2-bhyve -- multiple privilege escalations

Reno Robert reports: FreeBSD uses a two-process model for running a VM. For booting non-FreeBSD guests, a modified grub-emu is used grub-bhyve. Grub-bhyve executes command from guest grub.cfg file. This is a security problem because grub was never written to handle inputs from OS as untrusted. In...