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CVE-2024-26835

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: set dormant flag on hook register failure We need to set the dormant flag again if we fail to register th…

Published Apr 17, 2024EPSS 0.23%

Overview

CVE-2024-26835 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:

netfilter: nf_tables: set dormant flag on hook register failure

We need to set the dormant flag again if we fail to register

the hooks.

During memory pressure hook registration can fail and we end up

with a table marked as active but no registered hooks.

On table/base chain deletion, nf_tables will attempt to unregister

the hook again which yields a warn splat from the nftables core.

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/0c9302a6da262e6ab6a6c1d30f04a6130ed97376Refgit.kernel.org/stable/c/31ea574aeca1aa488e18716459bde057217637afRefgit.kernel.org/stable/c/664264a5c55bf97a9c571c557d477b75416199beRefgit.kernel.org/stable/c/6f2496366426cec18ba53f1c7f6c3ac307ca6a95Refgit.kernel.org/stable/c/a6411f3c48f991c19aaf9a24fce36865fbba28d7Refgit.kernel.org/stable/c/ae4360cbd385f0d7a8a86d5723e50448cc6318f3Refgit.kernel.org/stable/c/bccebf64701735533c8db37773eeacc6566cc8ecRefgit.kernel.org/stable/c/f2135bbf14949687e96cabb13d8a91ae3deb9069Refgit.kernel.org/stable/c/0c9302a6da262e6ab6a6c1d30f04a6130ed97376Refgit.kernel.org/stable/c/31ea574aeca1aa488e18716459bde057217637af

How CyberStrike helps

Frequently asked questions

What is CVE-2024-26835?

CVE-2024-26835 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-2024-26835?

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-2024-26835?

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-2024-26835?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-26835 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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