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CVE-2024-26825

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free rx_data_reassembly skb on NCI device cleanup rx_data_reassembly skb is stored during NCI data exchange for proce…

Published Apr 17, 2024CWE-459EPSS 0.24%

Overview

CVE-2024-26825 is a medium-severity vulnerability. It was published on April 17, 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:

nfc: nci: free rx_data_reassembly skb on NCI device cleanup

rx_data_reassembly skb is stored during NCI data exchange for processing

fragmented packets. It is dropped only when the last fragment is processed

or when an NTF packet with NCI_OP_RF_DEACTIVATE_NTF opcode is received.

However, the NCI device may be deallocated before that which leads to skb

leak.

As by design the rx_data_reassembly skb is bound to the NCI device and

nothing prevents the device to be freed before the skb is processed in

some way and cleaned, free it on the NCI device cleanup.

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

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/16d3f507b0fa70453dc54550df093d6e9ac630c1Refgit.kernel.org/stable/c/2f6d16f0520d6505241629ee2f5c131b547d5f9dRefgit.kernel.org/stable/c/471c9ede8061357b43a116fa692e70d91941ac23Refgit.kernel.org/stable/c/5c0c5ffaed73cbae6c317374dc32ba6cacc60895Refgit.kernel.org/stable/c/71349abe3aba7fedcab5b3fcd7aa82371fb5ccbfRefgit.kernel.org/stable/c/7e9a8498658b398bf11b8e388005fa54e40aed81Refgit.kernel.org/stable/c/a3d90fb5c23f29ba59c04005ae76c5228cef2be9Refgit.kernel.org/stable/c/bfb007aebe6bff451f7f3a4be19f4f286d0d5d9cRefgit.kernel.org/stable/c/16d3f507b0fa70453dc54550df093d6e9ac630c1Refgit.kernel.org/stable/c/2f6d16f0520d6505241629ee2f5c131b547d5f9d

How CyberStrike helps

Frequently asked questions

What is CVE-2024-26825?

CVE-2024-26825 is a medium-severity vulnerability. It was published on April 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26825?

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-2024-26825?

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-2024-26825?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-26825 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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