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CVE-2024-42151

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: bpf: mark bpf_dummy_struct_ops.test_1 parameter as nullable Test case dummy_st_ops/dummy_init_ret_value passes NULL as the firs…

Published Jul 30, 2024CWE-476EPSS 0.18%

Overview

CVE-2024-42151 is a medium-severity vulnerability. It was published on July 30, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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:

bpf: mark bpf_dummy_struct_ops.test_1 parameter as nullable

Test case dummy_st_ops/dummy_init_ret_value passes NULL as the first

parameter of the test_1() function. Mark this parameter as nullable to

make verifier aware of such possibility.

Otherwise, NULL check in the test_1() code:

SEC("struct_ops/test_1")

int BPF_PROG(test_1, struct bpf_dummy_ops_state *state)

{

if (!state)

return ...;

... access state ...

}

Might be removed by verifier, thus triggering NULL pointer dereference

under certain conditions.

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/1479eaff1f16983d8fda7c5a08a586c21891087dRefgit.kernel.org/stable/c/7f79097b0de97a486b137b750d7dd7b20b519d23Refgit.kernel.org/stable/c/1479eaff1f16983d8fda7c5a08a586c21891087dRefgit.kernel.org/stable/c/7f79097b0de97a486b137b750d7dd7b20b519d23

How CyberStrike helps

Frequently asked questions

What is CVE-2024-42151?

CVE-2024-42151 is a medium-severity vulnerability. It was published on July 30, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-42151?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-42151?

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-2024-42151?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-42151 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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