CVE-2024-27027

5.5 · MEDIUM

Published May 1, 2024 linux EPSS 0.26% (18th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-27027 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 1, 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:

dpll: fix dpll_xa_ref_*_del() for multiple registrations

Currently, if there are multiple registrations of the same pin on the

same dpll device, following warnings are observed:

WARNING: CPU: 5 PID: 2212 at drivers/dpll/dpll_core.c:143 dpll_xa_ref_pin_del.isra.0+0x21e/0x230

WARNING: CPU: 5 PID: 2212 at drivers/dpll/dpll_core.c:223 __dpll_pin_unregister+0x2b3/0x2c0

The problem is, that in both dpll_xa_ref_dpll_del() and

dpll_xa_ref_pin_del() registration is only removed from list in case the

reference count drops to zero. That is wrong, the registration has to

be removed always.

To fix this, remove the registration from the list and free

it unconditionally, instead of doing it only when the ref reference

counter reaches zero.

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	>= 6.7, < 6.7.11	Affected

References

Ref git.kernel.org/stable/c/769324eb35143462542cdb15483cdaf4877bf661 Ref git.kernel.org/stable/c/b27e32e9367dac024cd6f61f22655714f483fd67 Ref git.kernel.org/stable/c/b446631f355ece73b13c311dd712c47381a23172 Ref git.kernel.org/stable/c/769324eb35143462542cdb15483cdaf4877bf661 Ref git.kernel.org/stable/c/b27e32e9367dac024cd6f61f22655714f483fd67 Ref git.kernel.org/stable/c/b446631f355ece73b13c311dd712c47381a23172

Frequently Asked Questions

What is CVE-2024-27027?

CVE-2024-27027 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 1, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-27027?

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-2024-27027?

How can CyberStrike help with CVE-2024-27027?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-27027 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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