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CVE-2024-40902

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: jfs: xattr: fix buffer overflow for invalid xattr When an xattr size is not what is expected, it is printed out to the kernel l…

Published Jul 12, 2024CWE-120EPSS 0.32%

Overview

CVE-2024-40902 is a high-severity vulnerability. It was published on July 12, 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:

jfs: xattr: fix buffer overflow for invalid xattr

When an xattr size is not what is expected, it is printed out to the

kernel log in hex format as a form of debugging. But when that xattr

size is bigger than the expected size, printing it out can cause an

access off the end of the buffer.

Fix this all up by properly restricting the size of the debug hex dump

in the kernel log.

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/1e84c9b1838152a87cf453270a5fa75c5037e83aRefgit.kernel.org/stable/c/33aecc5799c93d3ee02f853cb94e201f9731f123Refgit.kernel.org/stable/c/4598233d9748fe4db4e13b9f473588aa25e87d69Refgit.kernel.org/stable/c/480e5bc21f2c42d90c2c16045d64d824dcdd5ec7Refgit.kernel.org/stable/c/7c55b78818cfb732680c4a72ab270cc2d2ee3d0fRefgit.kernel.org/stable/c/b537cb2f4c4a1357479716a9c339c0bda03d873fRefgit.kernel.org/stable/c/f0dedb5c511ed82cbaff4997a8decf2351ba549fRefgit.kernel.org/stable/c/fc745f6e83cb650f9a5f2c864158e3a5ea76dad0Refgit.kernel.org/stable/c/1e84c9b1838152a87cf453270a5fa75c5037e83aRefgit.kernel.org/stable/c/33aecc5799c93d3ee02f853cb94e201f9731f123

How CyberStrike helps

Frequently asked questions

What is CVE-2024-40902?

CVE-2024-40902 is a high-severity vulnerability. It was published on July 12, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-40902?

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-2024-40902?

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-2024-40902?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-40902 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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