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CVE-2023-1252

7.8 · HIGH

A use-after-free flaw was found in the Linux kernel’s Ext4 File System in how a user triggers several file operations simultaneously with the overlay FS usage.

Published Mar 23, 2023CWE-416EPSS 0.22%

Overview

CVE-2023-1252 is a high-severity vulnerability. It was published on March 23, 2023 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

A use-after-free flaw was found in the Linux kernel’s Ext4 File System in how a user triggers several file operations simultaneously with the overlay FS usage. This flaw allows a local user to crash or potentially escalate their privileges on the system. Only if patch 9a2544037600 ("ovl: fix use after free in struct ovl_aio_req") not applied yet, the kernel could be affected.

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

Reflore.kernel.org/lkml/20211115165433.449951285%40linuxfoundation.org/Refsecurity.netapp.com/advisory/ntap-20230505-0005/Reflore.kernel.org/lkml/20211115165433.449951285%40linuxfoundation.org/Refsecurity.netapp.com/advisory/ntap-20230505-0005/

How CyberStrike helps

Frequently asked questions

What is CVE-2023-1252?

CVE-2023-1252 is a high-severity vulnerability. It was published on March 23, 2023 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-1252?

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-2023-1252?

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-2023-1252?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-1252 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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