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CVE-2023-52520

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: platform/x86: think-lmi: Fix reference leak If a duplicate attribute is found using kset_find_obj(), a reference to that attrib…

Published Mar 2, 2024EPSS 0.24%

Overview

CVE-2023-52520 is a medium-severity vulnerability. It was published on March 2, 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:

platform/x86: think-lmi: Fix reference leak

If a duplicate attribute is found using kset_find_obj(), a reference

to that attribute is returned which needs to be disposed accordingly

using kobject_put(). Move the setting name validation into a separate

function to allow for this change without having to duplicate the

cleanup code for this setting.

As a side note, a very similar bug was fixed in

commit 7295a996fdab ("platform/x86: dell-sysman: Fix reference leak"),

so it seems that the bug was copied from that driver.

Compile-tested only.

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/124cf0ea4b82e1444ec8c7420af4e7db5558c293Refgit.kernel.org/stable/c/528ab3e605cabf2f9c9bd5944d3bfe15f6e94f81Refgit.kernel.org/stable/c/af21c9119a37cecb7ff27ce0c2f3cf721e9d0ec4Refgit.kernel.org/stable/c/c6e3023579de8d33256771ac0745239029e81106Refgit.kernel.org/stable/c/124cf0ea4b82e1444ec8c7420af4e7db5558c293Refgit.kernel.org/stable/c/528ab3e605cabf2f9c9bd5944d3bfe15f6e94f81Refgit.kernel.org/stable/c/af21c9119a37cecb7ff27ce0c2f3cf721e9d0ec4Refgit.kernel.org/stable/c/c6e3023579de8d33256771ac0745239029e81106

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52520?

CVE-2023-52520 is a medium-severity vulnerability. It was published on March 2, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-52520?

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-2023-52520?

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-2023-52520?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52520 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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