#VU99514 Out-of-bounds read in FreeBSD - CVE-2024-41721
Published: October 30, 2024
Vulnerability identifier: #VU99514
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2024-41721
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
FreeBSD
FreeBSD
Software vendor:
FreeBSD Foundation
FreeBSD Foundation
Description
The vulnerability allows a malicious guest to compromise the affected system.
The vulnerability exists due to a boundary condition in bhyve(8) when emulating device on a USB controller via XHCI emulation. A malicious guest can trigger an out-of-bounds read and crash the hypervisor or execute arbitrary code.
Note that bhyve runs in a Capsicum sandbox, so malicious code is constrained by the capabilities available to the bhyve process.
Remediation
Install updates from vendor's website.