CVE-2024-44068
📋 TL;DR
A use-after-free vulnerability in the m2m scaler driver of Samsung Exynos mobile and wearable processors allows local attackers to escalate privileges. This affects devices using Exynos 9820, 9825, 980, 990, 850, and W920 chipsets. Attackers could gain kernel-level access from a compromised user application.
💻 Affected Systems
- Samsung Mobile Processor Exynos 9820
- Samsung Mobile Processor Exynos 9825
- Samsung Mobile Processor Exynos 980
- Samsung Mobile Processor Exynos 990
- Samsung Mobile Processor Exynos 850
- Samsung Wearable Processor Exynos W920
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full device compromise with kernel-level code execution, allowing complete control over the device, data theft, and persistence.
Likely Case
Privilege escalation from a compromised app to kernel privileges, enabling further attacks like credential theft or installing malware.
If Mitigated
Limited impact if proper kernel hardening and exploit mitigations are in place, though kernel compromise remains possible.
🎯 Exploit Status
Requires local access and ability to execute code. Use-after-free vulnerabilities in kernel drivers typically require some exploit development skill but are frequently targeted.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Specific patch versions depend on device manufacturer implementations
Vendor Advisory: https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2024-44068/
Restart Required: Yes
Instructions:
1. Check for security updates from your device manufacturer. 2. Apply the latest firmware/security patch. 3. Reboot the device after installation.
🔧 Temporary Workarounds
No known effective workarounds
allThis is a kernel driver vulnerability that requires patching at the firmware level.
🧯 If You Can't Patch
- Restrict physical and network access to affected devices
- Implement application allowlisting to prevent malicious apps from gaining initial access
🔍 How to Verify
Check if Vulnerable:
Check device specifications for Exynos 9820, 9825, 980, 990, 850, or W920 processor. Check kernel version against manufacturer's patched versions.Check Version:
On Android: Settings > About Phone > Software Information or use 'getprop ro.boot.hardware' via ADBVerify Fix Applied:
Verify the device has received the latest security updates from the manufacturer and check the kernel version matches patched releases.📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- Unexpected privilege escalation attempts
- Suspicious kernel module loading
Network Indicators:
- Unusual outbound connections from privileged processes
SIEM Query:
Look for kernel crash reports or privilege escalation patterns in system logs