CVE-2024-38608

5.5 · MEDIUM

Published Jun 19, 2024 linux CWE-476 EPSS 0.19% (8th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-38608 is a medium-severity vulnerability affecting linux linux_kernel. It was published on June 19, 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:

net/mlx5e: Fix netif state handling

mlx5e_suspend cleans resources only if netif_device_present() returns

true. However, mlx5e_resume changes the state of netif, via

mlx5e_nic_enable, only if reg_state == NETREG_REGISTERED.

In the below case, the above leads to NULL-ptr Oops[1] and memory

leaks:

mlx5e_probe

_mlx5e_resume

mlx5e_attach_netdev

mlx5e_nic_enable <-- netdev not reg, not calling netif_device_attach()

register_netdev <-- failed for some reason.

ERROR_FLOW:

_mlx5e_suspend <-- netif_device_present return false, resources aren't freed :(

Hence, clean resources in this case as well.

[1]

BUG: kernel NULL pointer dereference, address: 0000000000000000

PGD 0 P4D 0

Oops: 0010 [#1] SMP

CPU: 2 PID: 9345 Comm: test-ovs-ct-gen Not tainted 6.5.0_for_upstream_min_debug_2023_09_05_16_01 #1

Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014

RIP: 0010

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	>= 4.12, < 6.9.3	Affected

References

Ref git.kernel.org/stable/c/3d5918477f94e4c2f064567875c475468e264644 Ref git.kernel.org/stable/c/f7e6cfb864a53af71c5cc904f1cc22215d68f5c6 Ref git.kernel.org/stable/c/3d5918477f94e4c2f064567875c475468e264644 Ref git.kernel.org/stable/c/f7e6cfb864a53af71c5cc904f1cc22215d68f5c6

Frequently Asked Questions

What is CVE-2024-38608?

CVE-2024-38608 is a medium-severity vulnerability affecting linux linux_kernel. It was published on June 19, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-38608?

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-2024-38608?

How can CyberStrike help with CVE-2024-38608?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-38608 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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