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CVE-2023-52458

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: block: add check that partition length needs to be aligned with block size Before calling add partition or resize partition, th…

Published Feb 23, 2024CWE-476EPSS 0.23%

Overview

CVE-2023-52458 is a medium-severity vulnerability. It was published on February 23, 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:

block: add check that partition length needs to be aligned with block size

Before calling add partition or resize partition, there is no check

on whether the length is aligned with the logical block size.

If the logical block size of the disk is larger than 512 bytes,

then the partition size maybe not the multiple of the logical block size,

and when the last sector is read, bio_truncate() will adjust the bio size,

resulting in an IO error if the size of the read command is smaller than

the logical block size.If integrity data is supported, this will also

result in a null pointer dereference when calling bio_integrity_free.

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/5010c27120962c85d2f421d2cf211791c9603503Refgit.kernel.org/stable/c/6f64f866aa1ae6975c95d805ed51d7e9433a0016Refgit.kernel.org/stable/c/8f6dfa1f1efe6dcca2d43e575491d8fcbe922f62Refgit.kernel.org/stable/c/bcdc288e7bc008daf38ef0401b53e4a8bb61bbe5Refgit.kernel.org/stable/c/cb16cc1abda18a9514106d2ac8c8d7abc0be5ed8Refgit.kernel.org/stable/c/ef31cc87794731ffcb578a195a2c47d744e25fb8Refgit.kernel.org/stable/c/5010c27120962c85d2f421d2cf211791c9603503Refgit.kernel.org/stable/c/6f64f866aa1ae6975c95d805ed51d7e9433a0016Refgit.kernel.org/stable/c/8f6dfa1f1efe6dcca2d43e575491d8fcbe922f62Refgit.kernel.org/stable/c/bcdc288e7bc008daf38ef0401b53e4a8bb61bbe5

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52458?

CVE-2023-52458 is a medium-severity vulnerability. It was published on February 23, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-52458?

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-2023-52458?

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-2023-52458?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52458 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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