CVE-2024-32668 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Reference

https://security.freebsd.org/advisories/FreeBSD-SA-24:12.bhyve.asc

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.2