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CVE-2024-46780

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: nilfs2: protect references to superblock parameters exposed in sysfs The superblock buffers of nilfs2 can not only be overwritt…

Published Sep 18, 2024EPSS 0.24%

Overview

CVE-2024-46780 is a high-severity vulnerability. It was published on September 18, 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:

nilfs2: protect references to superblock parameters exposed in sysfs

The superblock buffers of nilfs2 can not only be overwritten at runtime

for modifications/repairs, but they are also regularly swapped, replaced

during resizing, and even abandoned when degrading to one side due to

backing device issues. So, accessing them requires mutual exclusion using

the reader/writer semaphore "nilfs->ns_sem".

Some sysfs attribute show methods read this superblock buffer without the

necessary mutual exclusion, which can cause problems with pointer

dereferencing and memory access, so fix it.

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/157c0d94b4c40887329418c70ef4edd1a8d6b4edRefgit.kernel.org/stable/c/19cfeba0e4b8eda51484fcf8cf7d150418e1d880Refgit.kernel.org/stable/c/683408258917541bdb294cd717c210a04381931eRefgit.kernel.org/stable/c/8c6e43b3d5f109cf9c61bc188fcc8175404e924fRefgit.kernel.org/stable/c/962562d4c70c5cdeb4e955d63ff2017c4eca1aadRefgit.kernel.org/stable/c/b14e7260bb691d7f563f61da07d61e3c8b59a614Refgit.kernel.org/stable/c/b90beafac05931cbfcb6b1bd4f67c1923f47040eRefgit.kernel.org/stable/c/ba97ba173f9625d5f34a986088979eae8b80d38eReflists.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-2024-46780?

CVE-2024-46780 is a high-severity vulnerability. It was published on September 18, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-46780?

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-2024-46780?

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-2024-46780?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-46780 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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