CVE-2024-50223

5.5 · MEDIUM

Published Nov 9, 2024 linux CWE-476 EPSS 0.24% (15th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-50223 is a medium-severity vulnerability affecting linux linux_kernel. It was published on November 9, 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:

sched/numa: Fix the potential null pointer dereference in task_numa_work()

When running stress-ng-vm-segv test, we found a null pointer dereference

error in task_numa_work(). Here is the backtrace:

[323676.066985] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000020

......

[323676.067108] CPU: 35 PID: 2694524 Comm: stress-ng-vm-se

......

[323676.067113] pstate: 23401009 (nzCv daif +PAN -UAO +TCO +DIT +SSBS BTYPE=--)

[323676.067115] pc : vma_migratable+0x1c/0xd0

[323676.067122] lr : task_numa_work+0x1ec/0x4e0

[323676.067127] sp : ffff8000ada73d20

[323676.067128] x29: ffff8000ada73d20 x28: 0000000000000000 x27: 000000003e89f010

[323676.067130] x26: 0000000000080000 x25: ffff800081b5c0d8 x24: ffff800081b27000

[323676.067133] x23: 0000000000010000 x22: 0000000104d18cc0 x21: ffff0009f7158000

[323676.067135] x20: 0000000000000000 x19: 0000000000000000 x18: ffff8000ad

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	>= 6.3, < 6.6.60	Affected

References

Ref git.kernel.org/stable/c/9c70b2a33cd2aa6a5a59c5523ef053bd42265209 Ref git.kernel.org/stable/c/ade91f6e9848b370add44d89c976e070ccb492ef Ref git.kernel.org/stable/c/c60d98ef7078fc3e22b48e98eae7a897d88494ee

Frequently Asked Questions

What is CVE-2024-50223?

CVE-2024-50223 is a medium-severity vulnerability affecting linux linux_kernel. It was published on November 9, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-50223?

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-2024-50223?

How can CyberStrike help with CVE-2024-50223?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-50223 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.

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