CVE-2016-10491
📋 TL;DR
This CVE describes an integer overflow vulnerability in Qualcomm Snapdragon QuRT API functions that can lead to buffer overflow. It affects Android devices with Qualcomm chipsets before the April 2018 security patch. Successful exploitation could allow attackers to execute arbitrary code with elevated privileges.
💻 Affected Systems
- Android devices with Qualcomm Snapdragon chipsets
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with kernel-level privileges leading to complete device compromise, data theft, and persistent backdoor installation.
Likely Case
Local privilege escalation allowing attackers to gain elevated system permissions and bypass security controls.
If Mitigated
Limited impact with proper patch management and security controls in place, potentially reduced to denial of service.
🎯 Exploit Status
Exploitation requires local access to the device. The vulnerability is in Qualcomm's QuRT API, which may require specific knowledge of the chipset architecture.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Android security patch level 2018-04-05 or later
Vendor Advisory: https://source.android.com/security/bulletin/2018-04-01
Restart Required: Yes
Instructions:
1. Check current Android security patch level in Settings > About phone > Android security patch level. 2. If patch level is before April 2018, update device through Settings > System > System update. 3. For enterprise devices, deploy updates through MDM solutions. 4. Verify patch installation by checking security patch level again.
🔧 Temporary Workarounds
No effective workarounds available
allThis is a firmware-level vulnerability requiring vendor patches. No configuration changes or software workarounds can mitigate the core vulnerability.
🧯 If You Can't Patch
- Isolate affected devices from critical networks and sensitive data
- Implement strict application whitelisting and monitor for unusual process behavior
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android security patch level. If date is before 2018-04-05, device is vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify Android security patch level shows 2018-04-05 or later date after applying updates.📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- Unexpected process crashes in system services
- Memory corruption errors in system logs
Network Indicators:
- Unusual outbound connections from system processes
- Suspicious network activity from privileged contexts
SIEM Query:
source="android_logs" AND ("kernel panic" OR "segmentation fault" OR "buffer overflow") AND process="system_server"