CVE-2023-32379
📋 TL;DR
A buffer overflow vulnerability in macOS allows malicious applications to execute arbitrary code with kernel privileges. This affects macOS systems before Ventura 13.4, potentially giving attackers full system control.
💻 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 →⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with kernel-level persistence, data theft, and backdoor installation.
Likely Case
Local privilege escalation allowing malicious apps to bypass security controls and access sensitive data.
If Mitigated
Limited impact with proper app sandboxing and security controls in place.
🎯 Exploit Status
Requires user to execute malicious application; buffer overflow exploitation requires specific conditions.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: macOS Ventura 13.4
Vendor Advisory: https://support.apple.com/en-us/HT213758
Restart Required: Yes
Instructions:
1. Open System Settings > General > Software Update. 2. Install macOS Ventura 13.4 update. 3. Restart when prompted.
🔧 Temporary Workarounds
Application Whitelisting
allRestrict execution to trusted applications only
🧯 If You Can't Patch
- Implement strict application control policies
- Restrict user privileges and use standard user accounts
🔍 How to Verify
Check if Vulnerable:
Check macOS version: if below 13.4, system is vulnerable.Check Version:
sw_versVerify Fix Applied:
Verify macOS version is 13.4 or later in System Settings > General > About.📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- Unexpected privilege escalation attempts
Network Indicators:
- None (local exploit only)
SIEM Query:
macOS kernel extension loading from untrusted sources