CVE-2024-44199

7.1 HIGH

📋 TL;DR

This CVE describes an out-of-bounds read vulnerability in macOS that could allow a malicious application to read kernel memory or cause system crashes. It affects macOS systems prior to Sonoma 14.6. The vulnerability requires local application execution to exploit.

💻 Affected Systems

Products:
  • macOS
Versions: All versions prior to macOS Sonoma 14.6
Operating Systems: macOS
Default Config Vulnerable: ⚠️ Yes
Notes: All standard macOS installations are vulnerable. The vulnerability is in the kernel, so affects all system components.

📦 What is this software?

Macos by Apple

macOS is Apple's desktop and laptop operating system powering Mac computers used by millions of professionals, developers, creative professionals, and enterprise users worldwide. Built on a Unix foundation with the Darwin kernel and modern Cocoa frameworks, macOS delivers a seamless ecosystem integr...

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⚠️ Risk & Real-World Impact

🔴

Worst Case

An attacker could read sensitive kernel memory, potentially exposing credentials, encryption keys, or other privileged system information, leading to complete system compromise.

🟠

Likely Case

A malicious application could cause system crashes (kernel panics) or read limited kernel memory, potentially enabling privilege escalation or information disclosure.

🟢

If Mitigated

With proper application sandboxing and least privilege principles, impact would be limited to denial of service or limited information disclosure within the sandbox context.

🌐 Internet-Facing: LOW - This vulnerability requires local application execution and cannot be directly exploited over the network.
🏢 Internal Only: MEDIUM - Malicious applications or compromised user accounts could exploit this vulnerability to gain elevated privileges or cause system instability.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires a malicious application to be executed on the target system. The out-of-bounds read nature suggests it may be challenging to weaponize for reliable exploitation.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: macOS Sonoma 14.6

Vendor Advisory: https://support.apple.com/en-us/120911

Restart Required: Yes

Instructions:

1. Open System Settings 2. Click General 3. Click Software Update 4. Install macOS Sonoma 14.6 update 5. Restart when prompted

🔧 Temporary Workarounds

Application Restriction

macOS

Restrict installation and execution of untrusted applications using MDM policies or parental controls

🧯 If You Can't Patch

  • Implement strict application allowlisting to prevent execution of untrusted applications
  • Use network segmentation to isolate vulnerable systems and limit lateral movement potential

🔍 How to Verify

Check if Vulnerable:

Check macOS version in System Settings > General > About. If version is earlier than 14.6, system is vulnerable.

Check Version:

sw_vers

Verify Fix Applied:

Verify macOS version is 14.6 or later in System Settings > General > About

📡 Detection & Monitoring

Log Indicators:

  • Kernel panics in system logs
  • Unexpected application crashes with memory access errors
  • Console.app entries showing memory access violations

Network Indicators:

  • No direct network indicators as this is a local vulnerability

SIEM Query:

source="macos_system_logs" AND ("kernel panic" OR "out of bounds" OR "memory access")

🔗 References

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