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CVE-2024-26708

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: mptcp: really cope with fastopen race Fastopen and PM-trigger subflow shutdown can race, as reported by syzkaller.

Published Apr 3, 2024CWE-362EPSS 0.17%

Overview

CVE-2024-26708 is a medium-severity vulnerability. It was published on April 3, 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:

mptcp: really cope with fastopen race

Fastopen and PM-trigger subflow shutdown can race, as reported by

syzkaller.

In my first attempt to close such race, I missed the fact that

the subflow status can change again before the subflow_state_change

callback is invoked.

Address the issue additionally copying with all the states directly

reachable from TCP_FIN_WAIT1.

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/337cebbd850f94147cee05252778f8f78b8c337fRefgit.kernel.org/stable/c/4bfe217e075d04e63c092df9d40c608e598c2ef2Refgit.kernel.org/stable/c/e158fb9679d15a2317ec13b4f6301bd26265df2fRefgit.kernel.org/stable/c/337cebbd850f94147cee05252778f8f78b8c337fRefgit.kernel.org/stable/c/4bfe217e075d04e63c092df9d40c608e598c2ef2Refgit.kernel.org/stable/c/e158fb9679d15a2317ec13b4f6301bd26265df2f

How CyberStrike helps

Frequently asked questions

What is CVE-2024-26708?

CVE-2024-26708 is a medium-severity vulnerability. It was published on April 3, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26708?

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-2024-26708?

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-2024-26708?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-26708 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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