CVE-2020-11262
📋 TL;DR
This is a use-after-free vulnerability in Qualcomm Snapdragon chipsets where a race condition between command submission and context destruction can lead to memory corruption. It affects devices using Snapdragon Auto, Compute, Connectivity, Consumer IoT, Industrial IoT, Mobile, Voice & Music, and Wearables chips. Attackers could potentially execute arbitrary code or cause denial of service.
💻 Affected Systems
- Snapdragon Auto
- Snapdragon Compute
- Snapdragon Connectivity
- Snapdragon Consumer IOT
- Snapdragon Industrial 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, denial of service, or application crashes.
If Mitigated
Limited impact due to exploit complexity and memory corruption mitigations like ASLR.
🎯 Exploit Status
Race condition exploitation requires precise timing and local access. No public exploits known as of advisory publication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check device manufacturer for specific firmware updates
Vendor Advisory: https://www.qualcomm.com/company/product-security/bulletins/january-2021-bulletin
Restart Required: Yes
Instructions:
1. Check with device manufacturer for firmware updates. 2. Apply Qualcomm-provided patches through OEM firmware updates. 3. Reboot device after update installation.
🔧 Temporary Workarounds
No direct workaround
allThis is a firmware-level vulnerability requiring chipset vendor patches.
🧯 If You Can't Patch
- Isolate affected devices from untrusted networks and users
- Implement strict application control to prevent malicious app installation
🔍 How to Verify
Check if Vulnerable:
Check device chipset model and firmware version against manufacturer security bulletins.Check Version:
Device-specific: On Android: 'getprop ro.bootloader' or check Settings > About PhoneVerify Fix Applied:
Verify firmware version has been updated to a version after January 2021 Qualcomm security patches.📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- Unexpected process crashes
- Memory corruption error messages
Network Indicators:
- Unusual outbound connections from system processes
SIEM Query:
Process: (crash OR panic) AND Source: kernel AND Device: (Qualcomm OR Snapdragon)