CVE-2024-54509
📋 TL;DR
This CVE describes an out-of-bounds write vulnerability in macOS kernel memory that could allow a malicious application to cause system crashes or write to kernel memory. It affects macOS Sonoma and Sequoia operating systems before specific patch versions. Users running unpatched macOS systems are vulnerable to potential system instability or privilege escalation.
💻 Affected Systems
- macOS
📦 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...
Learn more about Macos →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...
Learn more about Macos →⚠️ Risk & Real-World Impact
Worst Case
Kernel memory corruption leading to system compromise, privilege escalation to kernel level, or persistent malware installation.
Likely Case
Application-triggered system crashes (kernel panics) causing denial of service and potential data loss from unsaved work.
If Mitigated
Limited to application sandbox escape attempts that are blocked by macOS security controls.
🎯 Exploit Status
Exploitation requires a malicious application to be installed and executed on the target system. No known public exploits at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Sonoma 14.7.2, macOS Sonoma 14.7.3, macOS Sequoia 15.2
Vendor Advisory: https://support.apple.com/en-us/121839
Restart Required: Yes
Instructions:
1. Open System Settings 2. Click General 3. Click Software Update 4. Install available updates 5. Restart when prompted
🔧 Temporary Workarounds
Application Restriction
macOSRestrict installation and execution of untrusted applications using macOS security controls
🧯 If You Can't Patch
- Implement application allowlisting to prevent execution of untrusted applications
- Use standard user accounts instead of administrator accounts for daily use
🔍 How to Verify
Check if Vulnerable:
Check macOS version in System Settings > General > About. If version is earlier than macOS Sonoma 14.7.2 or macOS Sequoia 15.2, system is vulnerable.Check Version:
sw_versVerify Fix Applied:
Verify macOS version is 14.7.2/14.7.3 or later for Sonoma, or 15.2 or later for Sequoia.📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs in /Library/Logs/DiagnosticReports
- Unexpected application crashes with kernel memory references
Network Indicators:
- No network-based indicators as this is a local vulnerability
SIEM Query:
source="macos" AND (event="kernel_panic" OR message="panic" OR message="out of bounds")