Multiple issues in ctl(4) CAM Target Layer

published 2024-09-05 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-49000

cvss: 9.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.6%; EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits: 0; none known

The ctl_write_buffer and ctl_read_buffer functions allocated memory to be returned to userspace, without initializing it.

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.

Patch / fix

fixed in 1

FreeBSD FreeBSD 13.3_p6, 14.0_p10, 14.1_p4, p4, p6, p10

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-09-05)

Exploit prediction

0.60% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	9.3	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD	3.1	8.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CNA	3.1	9.3	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

FreeBSD FreeBSD

Classification

Weakness

CWE-908 Use of Uninitialized Resource
CWE-909 Missing Initialization of Resource

References

Sources

CVE List CVE-2024-8178
NVD CVE-2024-8178

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary