CVE-2019-2319
📋 TL;DR
This vulnerability allows the HLOS (High-Level Operating System) to corrupt CPZ (Content Protection Zone) page table memory for S1 managed virtual machines in Qualcomm Snapdragon chipsets. This could enable privilege escalation or information disclosure. Affected devices include automotive, compute, mobile, and IoT platforms using specific Snapdragon processors.
💻 Affected Systems
- Snapdragon Auto
- Snapdragon Compute
- Snapdragon Connectivity
- Snapdragon Consumer IOT
- Snapdragon Industrial IOT
- Snapdragon Mobile
- Snapdragon Wired Infrastructure and Networking
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An attacker could gain elevated privileges, execute arbitrary code in privileged contexts, or access protected memory regions containing sensitive data.
Likely Case
Local privilege escalation allowing an attacker to bypass security boundaries and access protected system resources.
If Mitigated
With proper access controls and isolation mechanisms, impact would be limited to the compromised process scope.
🎯 Exploit Status
Exploitation requires local access and detailed knowledge of memory management and virtualization features.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to device manufacturer security updates for specific firmware versions
Vendor Advisory: https://www.qualcomm.com/company/product-security/bulletins/november-2019-bulletin
Restart Required: Yes
Instructions:
1. Check with device manufacturer for available security updates. 2. Apply firmware/software updates from OEM. 3. Reboot device to complete installation.
🔧 Temporary Workarounds
No effective workarounds
allThis is a hardware/firmware level vulnerability requiring vendor patches
🧯 If You Can't Patch
- Restrict physical access to affected devices
- Implement strict application whitelisting and privilege separation
🔍 How to Verify
Check if Vulnerable:
Check device specifications for affected Snapdragon chipset models: cat /proc/cpuinfo | grep -i qualcommCheck Version:
getprop ro.build.fingerprint (Android) or check device firmware version in settingsVerify Fix Applied:
Check with device manufacturer for specific firmware version that addresses CVE-2019-2319📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- Memory access violation logs
- Hypervisor/VMM crash logs
Network Indicators:
- No network indicators - local vulnerability
SIEM Query:
Search for kernel panic events or memory corruption alerts on affected devices