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Assigner | freebsd |
Reserved | 2024-08-27 |
Published | 2024-09-05 |
Updated | 2024-09-05 |
An insufficient boundary validation in the USB code could lead to an out-of-bounds write on the heap, with data controlled by the caller. A malicious, privileged software running in a guest VM can exploit the vulnerability to achieve code execution on the host in the bhyve userspace process, which typically runs as root. Note that bhyve runs in a Capsicum sandbox, so malicious code is constrained by the capabilities available to the bhyve process.
Synacktiv
The FreeBSD Foundation
The Alpha-Omega Project
https://security.freebsd.org/advisories/FreeBSD-SA-24:12.bhyve.asc