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CVE-2023-52449

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: mtd: Fix gluebi NULL pointer dereference caused by ftl notifier If both ftl.ko and gluebi.ko are loaded, the notifier of ftl tr…

Published Feb 22, 2024CWE-476EPSS 0.24%

Overview

CVE-2023-52449 is a medium-severity vulnerability. It was published on February 22, 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:

mtd: Fix gluebi NULL pointer dereference caused by ftl notifier

If both ftl.ko and gluebi.ko are loaded, the notifier of ftl

triggers NULL pointer dereference when trying to access

‘gluebi->desc’ in gluebi_read().

ubi_gluebi_init

ubi_register_volume_notifier

ubi_enumerate_volumes

ubi_notify_all

gluebi_notify nb->notifier_call()

gluebi_create

mtd_device_register

mtd_device_parse_register

add_mtd_device

blktrans_notify_add not->add()

ftl_add_mtd tr->add_mtd()

scan_header

mtd_read

mtd_read_oob

mtd_read_oob_std

gluebi_read mtd->read()

gluebi->desc - NULL

Detailed reproduction information available at the Link [1],

In the normal case, ob

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/001a3f59d8c914ef8273461d4bf495df384cc5f8Refgit.kernel.org/stable/c/1bf4fe14e97cda621522eb2f28b0a4e87c5b0745Refgit.kernel.org/stable/c/5389407bba1eab1266c6d83e226fb0840cb98dd5Refgit.kernel.org/stable/c/a43bdc376deab5fff1ceb93dca55bcab8dbdc1d6Refgit.kernel.org/stable/c/aeba358bcc8ffddf9b4a9bd0e5ec9eb338d46022Refgit.kernel.org/stable/c/b36aaa64d58aaa2f2cbc8275e89bae76a2b6c3dcRefgit.kernel.org/stable/c/cfd7c9d260dc0a3baaea05a122a19ab91e193c65Refgit.kernel.org/stable/c/d8ac2537763b54d278b80b2b080e1652523c7d4cRefgit.kernel.org/stable/c/001a3f59d8c914ef8273461d4bf495df384cc5f8Refgit.kernel.org/stable/c/1bf4fe14e97cda621522eb2f28b0a4e87c5b0745

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52449?

CVE-2023-52449 is a medium-severity vulnerability. It was published on February 22, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-52449?

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-2023-52449?

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-2023-52449?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52449 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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