CVE-2024-42416

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.

Problem types

CWE-790 Improper Filtering of Special Elements

CWE-823 Use of Out-of-range Pointer Offset

Product status

Credits

Synacktiv 0x40029bfa60

The FreeBSD Foundation 0x40029bfa70

The Alpha-Omega Project 0x40029bfa80

References

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

cve.org CVE-2024-42416

nvd.nist.gov CVE-2024-42416

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