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CVE-2024-42230

4.4 · MEDIUM
Published Jul 30, 2024 linux EPSS 0.20% (10th pctl)

Overview

CVE-2024-42230 is a medium-severity vulnerability affecting linux linux_kernel. It was published on July 30, 2024 and has a CVSS 3.1 base score of 4.4 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.4, 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:

powerpc/pseries: Fix scv instruction crash with kexec

kexec on pseries disables AIL (reloc_on_exc), required for scv

instruction support, before other CPUs have been shut down. This means

they can execute scv instructions after AIL is disabled, which causes an

interrupt at an unexpected entry location that crashes the kernel.

Change the kexec sequence to disable AIL after other CPUs have been

brought down.

As a refresher, the real-mode scv interrupt vector is 0x17000, and the

fixed-location head code probably couldn't easily deal with implementing

such high addresses so it was just decided not to support that interrupt

at all.

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 >= 5.9, < 6.1.98 Affected

References

Ref git.kernel.org/stable/c/21a741eb75f80397e5f7d3739e24d7d75e619011 Ref git.kernel.org/stable/c/8c6506616386ce37e59b2745fc481c6713fae4f3 Ref git.kernel.org/stable/c/c550679d604798d9fed8a5b2bb5693448a25407c Ref git.kernel.org/stable/c/d10e3c39001e9194b9a1bfd6979bd3fa19dccdc5 Ref git.kernel.org/stable/c/21a741eb75f80397e5f7d3739e24d7d75e619011 Ref git.kernel.org/stable/c/8c6506616386ce37e59b2745fc481c6713fae4f3 Ref git.kernel.org/stable/c/c550679d604798d9fed8a5b2bb5693448a25407c Ref git.kernel.org/stable/c/d10e3c39001e9194b9a1bfd6979bd3fa19dccdc5 Ref lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Frequently Asked Questions

What is CVE-2024-42230?

CVE-2024-42230 is a medium-severity vulnerability affecting linux linux_kernel. It was published on July 30, 2024 and has a CVSS 3.1 base score of 4.4 (MEDIUM).

How severe is CVE-2024-42230?

This vulnerability has a CVSS 3.1 base score of 4.4, 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-2024-42230?

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-2024-42230?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-42230 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.

How CyberStrike Helps

Autonomous Discovery

AI agents map your attack surface to find vulnerabilities like this one.
Continuous Pentesting

Automated penetration testing that runs continuously, not just quarterly.
Code Review

AI-driven PR review catches vulnerable dependencies before they ship.
HackBrowser

Browser-based exploitation validates findings with real proof-of-concept.

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