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CVE-2023-52489

4.7 · MEDIUM
Published Mar 11, 2024 linux CWE-362 EPSS 0.29% (21th pctl)

Overview

CVE-2023-52489 is a medium-severity vulnerability affecting linux linux_kernel. It was published on March 11, 2024 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.7, 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:

mm/sparsemem: fix race in accessing memory_section->usage

The below race is observed on a PFN which falls into the device memory

region with the system memory configuration where PFN's are such that

[ZONE_NORMAL ZONE_DEVICE ZONE_NORMAL]. Since normal zone start and end

pfn contains the device memory PFN's as well, the compaction triggered

will try on the device memory PFN's too though they end up in NOP(because

pfn_to_online_page() returns NULL for ZONE_DEVICE memory sections). When

from other core, the section mappings are being removed for the

ZONE_DEVICE region, that the PFN in question belongs to, on which

compaction is currently being operated is resulting into the kernel crash

with CONFIG_SPASEMEM_VMEMAP enabled. The crash logs can be seen at [1].

compact_zone() memunmap_pages

------------- ---------------

__pageblock_pfn_to_page

......

(a)pfn_valid():

valid_section()//return true

(b)_

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.

Affected Products

Vendor Product Versions Status
linux linux_kernel >= 5.3, < 5.10.210 Affected

Frequently Asked Questions

What is CVE-2023-52489?

CVE-2023-52489 is a medium-severity vulnerability affecting linux linux_kernel. It was published on March 11, 2024 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2023-52489?

This vulnerability has a CVSS 3.1 base score of 4.7, 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-2023-52489?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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-2023-52489?

CyberStrike's AI-powered security agents can automatically detect CVE-2023-52489 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.