CVE-2024-46870

4.7 · MEDIUM

Published Oct 9, 2024 linux CWE-362 EPSS 0.13% (3th pctl) CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-46870 is a medium-severity vulnerability affecting linux linux_kernel. It was published on October 9, 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:

drm/amd/display: Disable DMCUB timeout for DCN35

[Why]

DMCUB can intermittently take longer than expected to process commands.

Old ASIC policy was to continue while logging a diagnostic error - which

works fine for ASIC without IPS, but with IPS this could lead to a race

condition where we attempt to access DCN state while it's inaccessible,

leading to a system hang when the NIU port is not disabled or register

accesses that timeout and the display configuration in an undefined

state.

[How]

We need to investigate why these accesses take longer than expected, but

for now we should disable the timeout on DCN35 to avoid this race

condition. Since the waits happen only at lower interrupt levels the

risk of taking too long at higher IRQ and causing a system watchdog

timeout are minimal.

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	>= 4.15, < 4.19.323	Affected

References

Ref git.kernel.org/stable/c/31c254c9cd4b122a10db297124f867107a696d83 Ref git.kernel.org/stable/c/7c70e60fbf4bff1123f0e8d5cb1ae71df6164d7f

Frequently Asked Questions

What is CVE-2024-46870?

CVE-2024-46870 is a medium-severity vulnerability affecting linux linux_kernel. It was published on October 9, 2024 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2024-46870?

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-2024-46870?

How can CyberStrike help with CVE-2024-46870?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-46870 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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