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Published: 14/03/2020 Updated: 19/03/2020

CVSS v2 Base Score: 4.6 | Impact Score: 6.4 | Exploitability Score: 3.9

CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8

VMScore: 409

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, mishandles font loading by a guest through a grub2.cfg file, leading to a buffer overflow.

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FreeBSD grub-bhyve bootloader virtual machine escapes – [CVE-2020-10565, CVE-2020-10566] Introduction FreeBSD bhyve does not have legacy BIOS emulation [1] to start a VM using the full boot process As an alternative to BIOS emulation, a userspace bootloader running as host process directly loads the kernel image into the guest memory, initializes the registers, sets up t

CWE-120 https://svnweb.freebsd.org/ports?view=revision&revision=525916 https://nvd.nist.gov https://github.com/renorobert/grub-bhyve-bugs

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