CVE-2024-45063 Information

Description

The function ctl_write_buffer incorrectly set a flag which resulted in a kernel Use-After-Free when a command finished processing.

Malicious software running in a guest VM that exposes virtio_scsi can exploit the vulnerabilities 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. A malicious iSCSI initiator could achieve remote code execution on the iSCSI target host.

CVSS Vector

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

Reference

https://security.freebsd.org/advisories/FreeBSD-SA-24:11.ctl.asc

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8