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CVE-2025-38184

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer The reproduction steps: 1.

Published Jul 4, 2025CWE-476EPSS 0.21%

Overview

CVE-2025-38184 is a high-severity vulnerability. It was published on July 4, 2025 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:

tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer

The reproduction steps:

1. create a tun interface

2. enable l2 bearer

3. TIPC_NL_UDP_GET_REMOTEIP with media name set to tun

tipc: Started in network mode

tipc: Node identity 8af312d38a21, cluster identity 4711

tipc: Enabled bearer <eth:syz_tun>, priority 1

Oops: general protection fault

KASAN: null-ptr-deref in range

CPU: 1 UID: 1000 PID: 559 Comm: poc Not tainted 6.16.0-rc1+ #117 PREEMPT

Hardware name: QEMU Ubuntu 24.04 PC

RIP: 0010:tipc_udp_nl_dump_remoteip+0x4a4/0x8f0

the ub was in fact a struct dev.

when bid != 0 && skip_cnt != 0, bearer_list[bid] may be NULL or

other media when other thread changes it.

fix this by checking media_id.

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/05d332ba075753d569d66333d62d60fff5f57ad8Refgit.kernel.org/stable/c/0d3d91c3500f0c480e016faa4e2259c588616e59Refgit.kernel.org/stable/c/0f4a72fb266e48dbe928e1d936eab149e4ac3e1bRefgit.kernel.org/stable/c/3998283e4c32c0fe69edd59b0876c193f50abce6Refgit.kernel.org/stable/c/8595350615f952fcf8bc861464a6bf6b1129af50Refgit.kernel.org/stable/c/c2e17984752b9131061d1a2ca1199da2706337fdRefgit.kernel.org/stable/c/d3dfe821dfe091c0045044343c8d86596d66e2cfRefgit.kernel.org/stable/c/f82727adcf2992822e12198792af450a76ebd5efReflists.debian.org/debian-lts-announce/2025/10/msg00007.htmlReflists.debian.org/debian-lts-announce/2025/10/msg00008.html

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38184?

CVE-2025-38184 is a high-severity vulnerability. It was published on July 4, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2025-38184?

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-2025-38184?

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-2025-38184?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38184 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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