CVE-2020-10565
High
Description
grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, does not validate the address provided as part of a memrw command (read_* or write_*) by a guest through a grub2.cfg file. This allows an untrusted guest to perform arbitrary read or write operations in the context of the grub-bhyve process, resulting in code execution as root on the host OS.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Freebsd
PublishedMar 14, 2020
First seenMar 14, 2020
How to fix
Update
- freebsd freebsd525916_2020-02-12 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| freebsd freebsd | v < 525916_2020-02-12 | 525916_2020-02-12 |
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