CVE-2019-14087
📋 TL;DR
This is a use-after-free vulnerability in Qualcomm's graphics buffer management for HDR blit operations when unsupported color modes are encountered. It affects Snapdragon chipsets in consumer IoT, mobile, and wearable devices, potentially allowing local attackers to execute arbitrary code or cause denial of service.
💻 Affected Systems
- Snapdragon Consumer IOT
- Snapdragon Mobile
- Snapdragon Wearables
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Local privilege escalation leading to full device compromise, arbitrary code execution with kernel privileges, or permanent device bricking.
Likely Case
Local denial of service (device crash/reboot) or limited privilege escalation within the graphics subsystem context.
If Mitigated
Contained crash of graphics services without system compromise if proper sandboxing and privilege separation are implemented.
🎯 Exploit Status
Requires local access and ability to trigger specific graphics operations with unsupported color modes; no public exploits known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Qualcomm security bulletin May 2020 contains fixes
Vendor Advisory: https://www.qualcomm.com/company/product-security/bulletins/may-2020-bulletin
Restart Required: Yes
Instructions:
1. Check device manufacturer for security updates. 2. Apply Qualcomm-provided firmware/driver updates. 3. Update Android security patches. 4. Reboot device after update.
🔧 Temporary Workarounds
Disable HDR features
androidDisable HDR display modes if supported by device settings
Restrict graphics permissions
androidUse Android permissions system to restrict apps from accessing graphics APIs
🧯 If You Can't Patch
- Isolate affected devices from untrusted networks and users
- Implement strict app vetting and installation controls
🔍 How to Verify
Check if Vulnerable:
Check device chipset model and firmware version against Qualcomm's advisory; use 'getprop ro.boot.hardware' or similar commands to identify chipset.Check Version:
adb shell getprop ro.boot.hardware && adg shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify Android security patch level is May 2020 or later and check with device manufacturer for specific firmware updates.📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- Graphics driver crash reports
- ANR (Application Not Responding) for graphics services
SIEM Query:
Search for: 'kernel panic' OR 'segfault' in graphics driver logs OR 'qualcomm' AND 'adreno' crash reports