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CVE-2024-44974

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: avoid possible UaF when selecting endp select_local_address() and select_signal_address() both select an endpoint en…

Published Sep 4, 2024CWE-416EPSS 0.27%

Overview

CVE-2024-44974 is a high-severity vulnerability. It was published on September 4, 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:

mptcp: pm: avoid possible UaF when selecting endp

select_local_address() and select_signal_address() both select an

endpoint entry from the list inside an RCU protected section, but return

a reference to it, to be read later on. If the entry is dereferenced

after the RCU unlock, reading info could cause a Use-after-Free.

A simple solution is to copy the required info while inside the RCU

protected section to avoid any risk of UaF later. The address ID might

need to be modified later to handle the ID0 case later, so a copy seems

OK to deal with.

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/0201d65d9806d287a00e0ba96f0321835631f63fRefgit.kernel.org/stable/c/2b4f46f9503633dade75cb796dd1949d0e6581a1Refgit.kernel.org/stable/c/48e50dcbcbaaf713d82bf2da5c16aeced94ad07dRefgit.kernel.org/stable/c/9a9afbbc3fbfca4975eea4aa5b18556db5a0c0b8Refgit.kernel.org/stable/c/ddee5b4b6a1cc03c1e9921cf34382e094c2009f1Refgit.kernel.org/stable/c/f2c865e9e3ca44fc06b5f73b29a954775e4dbb38Reflists.debian.org/debian-lts-announce/2024/10/msg00003.htmlReflists.debian.org/debian-lts-announce/2025/01/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-44974?

CVE-2024-44974 is a high-severity vulnerability. It was published on September 4, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-44974?

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-2024-44974?

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-2024-44974?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-44974 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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