Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2023-52631

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix an NULL dereference bug The issue here is when this is called from ntfs_load_attr_list().

Published Apr 2, 2024CWE-476EPSS 0.22%

Overview

CVE-2023-52631 is a medium-severity vulnerability. It was published on April 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:

fs/ntfs3: Fix an NULL dereference bug

The issue here is when this is called from ntfs_load_attr_list(). The

"size" comes from le32_to_cpu(attr->res.data_size) so it can't overflow

on a 64bit systems but on 32bit systems the "+ 1023" can overflow and

the result is zero. This means that the kmalloc will succeed by

returning the ZERO_SIZE_PTR and then the memcpy() will crash with an

Oops on the next line.

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/686820fe141ea0220fc6fdfc7e5694f915cf64b2Refgit.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0bRefgit.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6cRefgit.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6Refgit.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7Refgit.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2Refgit.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0bRefgit.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6cRefgit.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6Refgit.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52631?

CVE-2023-52631 is a medium-severity vulnerability. It was published on April 2, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-52631?

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-2023-52631?

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-2023-52631?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52631 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.

Related MEDIUM CVEs from 2023

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999