CVE-2024-50131 – This CVE-2024-50131 is a buffer overflow vulner... (How to Fix)

Q: What is the severity of CVE-2024-50131?

CVE-2024-50131 has a CVSS score of 7.8 (HIGH). This CVE-2024-50131 is a buffer overflow vulnerability in the Linux kernel's tracing subsystem where string length validation fails to account for the NULL terminating character. Attackers could exploit this to cause kernel crashes or potentially execute arbitrary code. All Linux systems using affected kernel versions with tracing enabled are vulnerable.

📋 TL;DR

This CVE-2024-50131 is a buffer overflow vulnerability in the Linux kernel's tracing subsystem where string length validation fails to account for the NULL terminating character. Attackers could exploit this to cause kernel crashes or potentially execute arbitrary code. All Linux systems using affected kernel versions with tracing enabled are vulnerable.

💻 Affected Systems

Products:

Linux kernel

Versions: Specific affected versions not explicitly stated in CVE; check kernel commit history for exact ranges

Operating Systems: Linux distributions using vulnerable kernel versions

Default Config Vulnerable: ⚠️ Yes

Notes: Requires kernel tracing functionality to be enabled/used; many distributions enable tracing 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 →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Kernel panic leading to system crash or potential arbitrary code execution with kernel privileges, resulting in complete system compromise.

🟠

Likely Case

Kernel crash causing system instability or denial of service, requiring system reboot to recover.

🟢

If Mitigated

System remains stable with proper patching; unpatched systems with tracing disabled remain unaffected.

🌐 Internet-Facing: MEDIUM - Requires local access or ability to trigger kernel tracing events, but could be combined with other vulnerabilities.

🏢 Internal Only: MEDIUM - Local attackers or malicious users could exploit this to crash systems or potentially escalate privileges.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

Requires ability to trigger kernel tracing events; likely requires local access or specific conditions.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Kernel versions containing commit 02874ca52df2ca2423ba6122039315ed61c25972 or later

Vendor Advisory: https://git.kernel.org/stable/c/02874ca52df2ca2423ba6122039315ed61c25972

Restart Required: Yes

Instructions:

1. Update Linux kernel to patched version from your distribution's repositories. 2. Reboot system to load new kernel. 3. Verify kernel version after reboot.

🔧 Temporary Workarounds

Disable kernel tracing

linux

Disable the kernel tracing subsystem to prevent exploitation

echo 0 > /sys/kernel/debug/tracing/tracing_on
echo 0 > /sys/kernel/debug/tracing/events/enable

🧯 If You Can't Patch

Disable kernel tracing functionality completely
Restrict access to tracing interfaces to privileged users only

🔍 How to Verify

Check if Vulnerable:

Check kernel version and compare with patched versions from kernel git history

Check Version:

uname -r

Verify Fix Applied:

Verify kernel version includes commit 02874ca52df2ca2423ba6122039315ed61c25972

📡 Detection & Monitoring

Log Indicators:

Kernel panic messages
System crash/reboot logs
Tracing subsystem error messages

Network Indicators:

None - local vulnerability

SIEM Query:

Search for kernel panic events or system crash logs in system logs

📊 Metadata

CVE ID: CVE-2024-50131

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-120

Published: November 5, 2024

Last Updated: November 3, 2025

🔗 References

📤 Share & Export

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🔗 Related Vulnerabilities

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