CVE-2024-44284
📋 TL;DR
CVE-2024-44284 is an out-of-bounds write vulnerability in macOS that allows parsing malicious files to cause application crashes. This affects macOS Ventura and Sonoma users who open untrusted files. The vulnerability can lead to denial of service through unexpected app termination.
💻 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
Remote code execution leading to full system compromise if combined with other vulnerabilities, though Apple's description suggests only app termination.
Likely Case
Denial of service through application crashes when processing malicious files.
If Mitigated
Minimal impact with proper file handling controls and user awareness.
🎯 Exploit Status
Exploitation requires user interaction to open a malicious file. No public exploit code is mentioned in the references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Ventura 13.7.1, macOS Sonoma 14.7.1
Vendor Advisory: https://support.apple.com/en-us/121568
Restart Required: Yes
Instructions:
1. Open System Settings > General > Software Update. 2. Install available updates for macOS Ventura 13.7.1 or Sonoma 14.7.1. 3. Restart the system when prompted.
🔧 Temporary Workarounds
Restrict file handling
allConfigure applications to not automatically open untrusted file types
User awareness training
allTrain users to avoid opening files from untrusted sources
🧯 If You Can't Patch
- Implement application whitelisting to restrict which applications can open files
- Use endpoint detection and response (EDR) tools to monitor for suspicious file parsing behavior
🔍 How to Verify
Check if Vulnerable:
Check macOS version in System Settings > General > About. If version is Ventura before 13.7.1 or Sonoma before 14.7.1, system is vulnerable.Check Version:
sw_versVerify Fix Applied:
Verify macOS version is Ventura 13.7.1 or Sonoma 14.7.1 or later in System Settings > General > About.📡 Detection & Monitoring
Log Indicators:
- Application crash logs related to file parsing
- Console logs showing unexpected process termination
Network Indicators:
- File downloads from untrusted sources followed by application crashes
SIEM Query:
source="macos" AND (event_type="crash" OR event_type="termination") AND process_name IN ["affected_applications"]