CVE-2024-42416 Multiple issues in ctl(4) CAM Target Layer
A guest VM or remote iSCSI initiator can exploit a kernel validation flaw to achieve code execution on the host, typically within the bhyve process.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-42416?
CVE-2024-42416 is a high-severity memory corruption vulnerability in Freebsd Freebsd, published on 5 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2024-42416?
It affects 1 product.
Products include Freebsd Freebsd.
How do I fix CVE-2024-42416?
No fix has been published for CVE-2024-42416 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2024-42416 being exploited?
There is no known exploitation of CVE-2024-42416 in the wild and no public exploit code.
Other vulnerabilities in Freebsd Freebsd
Sources
Also known as GHSA-hgfp-qxpq-6q7w.