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CVE-2024-43816

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Revise lpfc_prep_embed_io routine with proper endian macro usages On big endian architectures, it is possible to ru…

Published Aug 17, 2024CWE-476EPSS 0.20%

Overview

CVE-2024-43816 is a high-severity vulnerability. It was published on August 17, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

scsi: lpfc: Revise lpfc_prep_embed_io routine with proper endian macro usages

On big endian architectures, it is possible to run into a memory out of

bounds pointer dereference when FCP targets are zoned.

In lpfc_prep_embed_io, the memcpy(ptr, fcp_cmnd, sgl->sge_len) is

referencing a little endian formatted sgl->sge_len value. So, the memcpy

can cause big endian systems to crash.

Redefine the *sgl ptr as a struct sli4_sge_le to make it clear that we are

referring to a little endian formatted data structure. And, update the

routine with proper le32_to_cpu macro usages.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/8bc7c617642db6d8d20ee671fb6c4513017e7a7eRefgit.kernel.org/stable/c/9fd003f344d502f65252963169df3dd237054e49

How CyberStrike helps

Frequently asked questions

What is CVE-2024-43816?

CVE-2024-43816 is a high-severity vulnerability. It was published on August 17, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-43816?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-43816?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-43816?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-43816 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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