In FreeBSD before 11.2-STABLE(r341486) and 11.2-RELEASE-p6, insufficient bounds checking in one of the device models provided by bhyve can permit a guest operating system to overwrite memory in the bhyve host possibly permitting arbitrary code execution. A guest OS using a firmware image can cause the bhyve process to crash, or possibly execute arbitrary code on the host as root.
| Software | From | Fixed in |
|---|---|---|
| freebsd / freebsd | - | 11.2 |
| freebsd / freebsd | 11.2-p5 | 11.2-p5.x |