CVE-2024-42086 – This CVE addresses integer overflow vulnerabili... (How to Fix)

Q: What is the severity of CVE-2024-42086?

CVE-2024-42086 has a CVSS score of 7.8 (HIGH). This CVE addresses integer overflow vulnerabilities in the BME680 sensor driver's compensation functions within the Linux kernel. Attackers could exploit these overflows to cause kernel panics or potentially execute arbitrary code with kernel privileges. Systems using the affected BME680 sensor driver are vulnerable.

📋 TL;DR

This CVE addresses integer overflow vulnerabilities in the BME680 sensor driver's compensation functions within the Linux kernel. Attackers could exploit these overflows to cause kernel panics or potentially execute arbitrary code with kernel privileges. Systems using the affected BME680 sensor driver are vulnerable.

💻 Affected Systems

Products:

Linux kernel with BME680 sensor driver

Versions: Linux kernel versions before fixes in stable commits (specific versions vary by distribution)

Operating Systems: Linux distributions using vulnerable kernel versions

Default Config Vulnerable: ✅ No

Notes: Only vulnerable if BME680 sensor driver is loaded/used. Many systems won't have this hardware or driver loaded by default.

📦 What is this software?

Linux Kernel by Linux

The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...

Learn more about Linux Kernel →

Linux Kernel by Linux

The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...

Learn more about Linux Kernel →

Linux Kernel by Linux

The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...

Learn more about Linux Kernel →

Linux Kernel by Linux

The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...

Learn more about Linux Kernel →

Linux Kernel by Linux

The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...

Learn more about Linux Kernel →

Linux Kernel by Linux

The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...

Learn more about Linux Kernel →

Linux Kernel by Linux

The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...

Learn more about Linux Kernel →

Linux Kernel by Linux

The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...

Learn more about Linux Kernel →

Linux Kernel by Linux

The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...

Learn more about Linux Kernel →

Linux Kernel by Linux

The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...

Learn more about Linux Kernel →

Linux Kernel by Linux

The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...

Learn more about Linux Kernel →

Linux Kernel by Linux

The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...

Learn more about Linux Kernel →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Kernel panic leading to system crash or potential arbitrary code execution with kernel privileges, enabling full system compromise.

🟠

Likely Case

Kernel panic causing system instability or denial of service, requiring system reboot to restore functionality.

🟢

If Mitigated

No impact if patched or if BME680 sensor driver is not loaded/used.

🌐 Internet-Facing: LOW - Requires local access or specialized hardware interaction.

🏢 Internal Only: MEDIUM - Systems with BME680 sensors or loaded driver could be vulnerable to local privilege escalation.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: HIGH

Exploitation requires local access and interaction with BME680 sensor hardware/driver. No public exploits known at this time.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Linux kernel with fixes from stable commits (3add41bbda92, 6fa31bbe2ea8, 7a13d1357658, b0af334616ed, b5967393d50e)

Vendor Advisory: https://git.kernel.org/stable/c/3add41bbda92938e9a528d74659dfc552796be4e

Restart Required: Yes

Instructions:

1. Update Linux kernel to version containing fixes. 2. For distributions: Use package manager (apt/yum/dnf) to update kernel. 3. Reboot system to load new kernel.

🔧 Temporary Workarounds

Disable BME680 driver module

linux

Prevent loading of vulnerable driver if BME680 hardware not needed

echo 'blacklist bme680' >> /etc/modprobe.d/blacklist.conf
rmmod bme680

🧯 If You Can't Patch

Ensure BME680 sensor driver is not loaded (check with lsmod | grep bme680)
Restrict physical access to systems with BME680 sensors

🔍 How to Verify

Check if Vulnerable:

Check if BME680 driver is loaded: lsmod | grep bme680 AND check kernel version against patched versions

Check Version:

uname -r

Verify Fix Applied:

Verify kernel version is updated AND BME680 driver functions normally with sensor

📡 Detection & Monitoring

Log Indicators:

Kernel panic messages
Driver crash logs mentioning bme680

Network Indicators:

None - local vulnerability only

SIEM Query:

source="kernel" AND ("panic" OR "Oops") AND "bme680"

📊 Metadata

CVE ID: CVE-2024-42086

CVSS v3 Score: 7.8 (HIGH)

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE: CWE-787

Published: July 29, 2024

Last Updated: November 3, 2025

🔗 References

📤 Share & Export

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🔗 Related Vulnerabilities

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