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CVE-2023-52457

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: serial: 8250: omap: Don't skip resource freeing if pm_runtime_resume_and_get() failed Returning an error code from .remove() ma…

Published Feb 23, 2024CWE-416EPSS 0.23%

Overview

CVE-2023-52457 is a high-severity vulnerability. It was published on February 23, 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:

serial: 8250: omap: Don't skip resource freeing if pm_runtime_resume_and_get() failed

Returning an error code from .remove() makes the driver core emit the

little helpful error message:

remove callback returned a non-zero value. This will be ignored.

and then remove the device anyhow. So all resources that were not freed

are leaked in this case. Skipping serial8250_unregister_port() has the

potential to keep enough of the UART around to trigger a use-after-free.

So replace the error return (and with it the little helpful error

message) by a more useful error message and continue to cleanup.

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/828cd829483f0cda920710997aed79130b0af690Refgit.kernel.org/stable/c/887a558d0298d36297daea039954c39940228d9bRefgit.kernel.org/stable/c/95e4e0031effad9837af557ecbfd4294a4d8aeeeRefgit.kernel.org/stable/c/ad90d0358bd3b4554f243a425168fc7cebe7d04eRefgit.kernel.org/stable/c/b502fb43f7fb55aaf07f6092ab44657595214b93Refgit.kernel.org/stable/c/bc57f3ef8a9eb0180606696f586a6dcfaa175ed0Refgit.kernel.org/stable/c/d74173bda29aba58f822175d983d07c8ed335494Refgit.kernel.org/stable/c/828cd829483f0cda920710997aed79130b0af690Refgit.kernel.org/stable/c/887a558d0298d36297daea039954c39940228d9bRefgit.kernel.org/stable/c/95e4e0031effad9837af557ecbfd4294a4d8aeee

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52457?

CVE-2023-52457 is a high-severity vulnerability. It was published on February 23, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-52457?

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-2023-52457?

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-2023-52457?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52457 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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