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CVE-2024-43826

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: nfs: pass explicit offset/count to trace events nfs_folio_length is unsafe to use without having the folio locked and a check f…

Published Aug 17, 2024CWE-476EPSS 0.23%

Overview

CVE-2024-43826 is a medium-severity vulnerability. It was published on August 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:

nfs: pass explicit offset/count to trace events

nfs_folio_length is unsafe to use without having the folio locked and a

check for a NULL ->f_mapping that protects against truncations and can

lead to kernel crashes. E.g. when running xfstests generic/065 with

all nfs trace points enabled.

Follow the model of the XFS trace points and pass in an explіcit offset

and length. This has the additional benefit that these values can

be more accurate as some of the users touch partial folio ranges.

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/1562138b9cababf637eee485e98491f9206a990dRefgit.kernel.org/stable/c/387e6e9d110250946df4d4ebef9c2def5c7a4722Refgit.kernel.org/stable/c/fada32ed6dbc748f447c8d050a961b75d946055a

How CyberStrike helps

Frequently asked questions

What is CVE-2024-43826?

CVE-2024-43826 is a medium-severity vulnerability. It was published on August 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-43826?

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-2024-43826?

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-2024-43826?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-43826 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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