CVE-2024-42416: Multiple issues in ctl(4) CAM Target Layer

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-09-05 · updated 2026-06-17
Weakness: CWE-790

Description

The ctl_report_supported_opcodes function did not sufficiently validate a field provided by userspace, allowing an arbitrary write to a limited amount of kernel help memory. 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.

Affected products

FreeBSD: from 13.0 before 13.3; 13.3, 13.3-p1, 13.3-p2, 13.3-p3, 13.3-p4, 13.3-p5 (+18) — fixed in 13.3

How to fix

Upgrade to a fixed version: FreeBSD 13.3. Check the vendor advisory for mitigations.

References

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