CVE-2024-42134

5.5 · MEDIUM

Published Jul 30, 2024 linux CWE-476 EPSS 0.20% (10th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-42134 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 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:

virtio-pci: Check if is_avq is NULL

[bug]

In the virtio_pci_common.c function vp_del_vqs, vp_dev->is_avq is involved

to determine whether it is admin virtqueue, but this function vp_dev->is_avq

may be empty. For installations, virtio_pci_legacy does not assign a value

to vp_dev->is_avq.

[fix]

Check whether it is vp_dev->is_avq before use.

[test]

Test with virsh Attach device

Before this patch, the following command would crash the guest system

After applying the patch, everything seems to be working fine.

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	>= 0, < 6.9.9	Affected

References

Ref git.kernel.org/stable/c/5e2024b0b9b3d5709e3f7e9b92951d7e29154106 Ref git.kernel.org/stable/c/c8fae27d141a32a1624d0d0d5419d94252824498 Ref git.kernel.org/stable/c/5e2024b0b9b3d5709e3f7e9b92951d7e29154106 Ref git.kernel.org/stable/c/c8fae27d141a32a1624d0d0d5419d94252824498

Frequently Asked Questions

What is CVE-2024-42134?

CVE-2024-42134 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 5.5 (MEDIUM).

How severe is CVE-2024-42134?

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-2024-42134?

How can CyberStrike help with CVE-2024-42134?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-42134 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

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HackBrowser

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