CVE-2019-14037
📋 TL;DR
CVE-2019-14037 is a use-after-free vulnerability in Qualcomm Snapdragon socket handling that allows attackers to potentially execute arbitrary code or cause denial of service. This affects numerous Qualcomm Snapdragon platforms across automotive, mobile, IoT, and wearable devices. Attackers could exploit this by manipulating socket close and bind operations.
💻 Affected Systems
- Snapdragon Auto
- Snapdragon Compute
- Snapdragon Connectivity
- Snapdragon Consumer Electronics Connectivity
- Snapdragon Consumer IOT
- Snapdragon Industrial IOT
- Snapdragon IoT
- Snapdragon Mobile
- Snapdragon Voice & Music
- Snapdragon Wearables
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete device compromise, data theft, or persistent backdoor installation.
Likely Case
Local privilege escalation from a lower-privileged process to kernel-level access, potentially leading to denial of service.
If Mitigated
Limited impact with proper kernel hardening, SELinux policies, and process isolation in place.
🎯 Exploit Status
Exploitation requires local access and knowledge of kernel memory layout. No public exploits known as of July 2020 advisory.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Refer to Qualcomm July 2020 security bulletin for specific chipset patches
Vendor Advisory: https://www.qualcomm.com/company/product-security/bulletins/july-2020-bulletin
Restart Required: Yes
Instructions:
1. Check device manufacturer for firmware updates. 2. Apply Qualcomm-provided kernel patches. 3. Update Android security patch level to July 2020 or later. 4. Reboot device after update.
🔧 Temporary Workarounds
Kernel hardening
linuxEnable kernel address space layout randomization (KASLR) and other memory protection features
echo 1 > /proc/sys/kernel/kptr_restrict
echo 2 > /proc/sys/kernel/perf_event_paranoid
Process isolation
allRestrict socket operations through SELinux policies or app sandboxing
🧯 If You Can't Patch
- Implement strict application whitelisting to prevent untrusted code execution
- Deploy network segmentation to isolate vulnerable devices from critical systems
🔍 How to Verify
Check if Vulnerable:
Check kernel version and security patch date: 'getprop ro.build.version.security_patch' on Android or 'uname -a' on LinuxCheck Version:
Android: getprop ro.build.version.security_patch; Linux: uname -rVerify Fix Applied:
Verify security patch level is July 2020 or later and kernel version matches patched release📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- Unexpected process crashes
- SELinux denials for socket operations
Network Indicators:
- Unusual local socket activity
- Suspicious inter-process communication
SIEM Query:
source="kernel" AND ("use-after-free" OR "general protection fault" OR "kernel panic")