CVE-2024-39509

5.5 · MEDIUM

Published Jul 12, 2024 linux CWE-617 EPSS 0.30% (22th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-39509 is a medium-severity vulnerability affecting linux linux_kernel. It was published on July 12, 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:

HID: core: remove unnecessary WARN_ON() in implement()

Syzkaller hit a warning [1] in a call to implement() when trying

to write a value into a field of smaller size in an output report.

Since implement() already has a warn message printed out with the

help of hid_warn() and value in question gets trimmed with:

...

value &= m;

...

WARN_ON may be considered superfluous. Remove it to suppress future

syzkaller triggers.

[1]

WARNING: CPU: 0 PID: 5084 at drivers/hid/hid-core.c:1451 implement drivers/hid/hid-core.c:1451 [inline]

WARNING: CPU: 0 PID: 5084 at drivers/hid/hid-core.c:1451 hid_output_report+0x548/0x760 drivers/hid/hid-core.c:1863

Modules linked in:

CPU: 0 PID: 5084 Comm: syz-executor424 Not tainted 6.9.0-rc7-syzkaller-00183-gcf87f46fd34d #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024

RIP: 0010:implement drivers/hid/hid-core.c:1451 [inline]

RIP: 0010:hid_output_

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	>= 4.7, < 4.19.317	Affected

References

Frequently Asked Questions

What is CVE-2024-39509?

CVE-2024-39509 is a medium-severity vulnerability affecting linux linux_kernel. It was published on July 12, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-39509?

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-2024-39509?

How can CyberStrike help with CVE-2024-39509?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-39509 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

Autonomous Discovery

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HackBrowser

Browser-based exploitation validates findings with real proof-of-concept.

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