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CVE-2024-36887

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: e1000e: change usleep_range to udelay in PHY mdic access This is a partial revert of commit 6dbdd4de0362 ("e1000e: Workaround f…

Published May 30, 2024EPSS 0.24%

Overview

CVE-2024-36887 is a medium-severity vulnerability. It was published on May 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:

e1000e: change usleep_range to udelay in PHY mdic access

This is a partial revert of commit 6dbdd4de0362 ("e1000e: Workaround

for sporadic MDI error on Meteor Lake systems"). The referenced commit

used usleep_range inside the PHY access routines, which are sometimes

called from an atomic context. This can lead to a kernel panic in some

scenarios, such as cable disconnection and reconnection on vPro systems.

Solve this by changing the usleep_range calls back to udelay.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refgit.kernel.org/stable/c/387f295cb2150ed164905b648d76dfcbd3621778Refgit.kernel.org/stable/c/950d5226cd6bb83ba720961a8d4d5cf79e6afd57Refgit.kernel.org/stable/c/f8a139656c95db893a543159873c57a470d7376dRefgit.kernel.org/stable/c/387f295cb2150ed164905b648d76dfcbd3621778Refgit.kernel.org/stable/c/950d5226cd6bb83ba720961a8d4d5cf79e6afd57Refgit.kernel.org/stable/c/f8a139656c95db893a543159873c57a470d7376d

How CyberStrike helps

Frequently asked questions

What is CVE-2024-36887?

CVE-2024-36887 is a medium-severity vulnerability. It was published on May 30, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-36887?

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-2024-36887?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2024-36887?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-36887 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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