CVE-2020-0367

9.1 CRITICAL

📋 TL;DR

CVE-2020-0367 is an out-of-bounds write vulnerability in Android System-on-Chip (SoC) components that could allow attackers to execute arbitrary code or cause denial of service. This affects Android devices using vulnerable SoC implementations. The vulnerability stems from missing bounds checks in memory operations.

💻 Affected Systems

Products:
  • Android devices with vulnerable SoC implementations
Versions: Android SoC versions prior to October 2020 security patch
Operating Systems: Android
Default Config Vulnerable: ⚠️ Yes
Notes: Specific SoC vendors and models may vary; check device manufacturer advisories.

📦 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 allowing apps to gain elevated permissions or cause system crashes.

🟢

If Mitigated

Limited impact with proper app sandboxing and SELinux policies preventing privilege escalation.

🌐 Internet-Facing: MEDIUM - Requires local access or malicious app installation, but could be chained with other vulnerabilities.
🏢 Internal Only: HIGH - Local attackers or malicious apps could exploit this for privilege escalation.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires local access or malicious app installation; no public exploit code available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: October 2020 Android Security Patch Level or later

Vendor Advisory: https://source.android.com/security/bulletin/2020-10-01

Restart Required: Yes

Instructions:

1. Check for system updates in Settings > System > Advanced > System update. 2. Install October 2020 or later security patch. 3. Reboot device after installation.

🔧 Temporary Workarounds

Restrict app installations

all

Only install apps from trusted sources like Google Play Store

Enable Google Play Protect

android

Ensure Google Play Protect is active to detect malicious apps

🧯 If You Can't Patch

  • Isolate affected devices from sensitive networks and data
  • Implement strict app whitelisting policies and monitor for suspicious activity

🔍 How to Verify

Check if Vulnerable:

Check Android security patch level in Settings > About phone > Android version > Security patch level

Check Version:

adb shell getprop ro.build.version.security_patch

Verify Fix Applied:

Verify security patch level shows October 2020 or later date

📡 Detection & Monitoring

Log Indicators:

  • Kernel panic logs
  • SELinux denials for privilege escalation attempts
  • App crash reports with memory corruption signatures

Network Indicators:

  • Unusual outbound connections from system processes
  • Anomalous privilege escalation patterns

SIEM Query:

source="android_logs" AND ("kernel panic" OR "segmentation fault" OR "memory corruption")

🔗 References

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