CVE-2024-42284 – A buffer overflow vulnerability in the Linux ke... (How to Fix)

Q: What is the severity of CVE-2024-42284?

CVE-2024-42284 has a CVSS score of 7.8 (HIGH). A buffer overflow vulnerability in the Linux kernel's TIPC (Transparent Inter-Process Communication) subsystem allows attackers to cause memory corruption when invalid UDP media addresses are processed. This affects Linux systems using TIPC networking, potentially leading to kernel crashes or arbitrary code execution. The vulnerability is present in the kernel's networking stack and requires TIPC to be enabled.

📋 TL;DR

A buffer overflow vulnerability in the Linux kernel's TIPC (Transparent Inter-Process Communication) subsystem allows attackers to cause memory corruption when invalid UDP media addresses are processed. This affects Linux systems using TIPC networking, potentially leading to kernel crashes or arbitrary code execution. The vulnerability is present in the kernel's networking stack and requires TIPC to be enabled.

💻 Affected Systems

Products:

Linux kernel

Versions: Specific affected versions not specified in CVE, but references indicate stable kernel patches. Likely affects multiple kernel versions before the fix.

Operating Systems: Linux distributions using vulnerable kernel versions

Default Config Vulnerable: ✅ No

Notes: TIPC must be enabled and configured. Many distributions don't enable TIPC by default. Requires CONFIG_TIPC to be set in kernel configuration.

📦 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 →

⚠️ Risk & Real-World Impact

🔴

Worst Case

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

🟠

Likely Case

Denial of service through kernel panic or system crash when processing malformed UDP addresses in TIPC communications.

🟢

If Mitigated

Minimal impact if TIPC is disabled or systems are properly segmented with network controls.

🌐 Internet-Facing: LOW - TIPC is typically used in internal cluster communications, not exposed to the internet.

🏢 Internal Only: MEDIUM - Internal attackers or compromised systems within the same network segment could exploit this if TIPC is enabled.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

Exploitation requires ability to send malformed UDP addresses to TIPC-enabled systems. Likely requires local network access or compromised internal system.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Kernel versions containing commits: 253405541be2f15ffebdeac2f4cf4b7e9144d12f, 2abe350db1aa599eeebc6892237d0bce0f1de62a, 5eea127675450583680c8170358bcba43227bd69, 728734352743a78b4c5a7285b282127696a4a813, 76ddf84a52f0d8ec3f5db6ccce08faf202a17d28

Vendor Advisory: https://git.kernel.org/stable/c/253405541be2f15ffebdeac2f4cf4b7e9144d12f

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 TIPC module

linux

Prevent loading of TIPC kernel module to eliminate attack surface

echo 'install tipc /bin/true' >> /etc/modprobe.d/disable-tipc.conf
rmmod tipc 2>/dev/null || true

Block TIPC network traffic

linux

iptables -A INPUT -p 0x88 -j DROP
iptables -A OUTPUT -p 0x88 -j DROP

🧯 If You Can't Patch

Disable TIPC functionality if not required for operations
Implement network segmentation to isolate TIPC-enabled systems from untrusted networks

🔍 How to Verify

Check if Vulnerable:

Check if TIPC module is loaded: lsmod | grep tipc. If loaded and kernel version is unpatched, system is vulnerable.

Check Version:

uname -r

Verify Fix Applied:

Check kernel version against patched versions from distribution vendor. Verify TIPC functionality still works if required.

📡 Detection & Monitoring

Log Indicators:

Kernel panic logs
System crash/reboot events
TIPC error messages in dmesg or syslog

Network Indicators:

Unusual TIPC protocol traffic patterns
Malformed UDP packets to TIPC ports

SIEM Query:

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

📊 Metadata

CVE ID: CVE-2024-42284

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-754

Published: August 17, 2024

Last Updated: November 3, 2025

🔗 References

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