CVE-2020-0283

9.1 CRITICAL

📋 TL;DR

CVE-2020-0283 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. Attackers could potentially gain elevated privileges on affected devices.

💻 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 with device manufacturers for specific affected hardware.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution with kernel privileges leading to complete device compromise, data theft, or persistent backdoor installation.

🟠

Likely Case

Local privilege escalation allowing apps to break out of sandbox and access sensitive data or system resources.

🟢

If Mitigated

Denial of service or application crash if exploit fails or is blocked by security controls.

🌐 Internet-Facing: MEDIUM - Requires local access or malicious app installation, but could be combined with other vulnerabilities for remote exploitation.
🏢 Internal Only: HIGH - Malicious apps or compromised user accounts could exploit this for privilege escalation on internal devices.

🎯 Exploit Status

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

Requires local access or ability to install malicious application. Exploitation details not publicly documented.

🛠️ 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. 4. Verify patch level in Settings > About phone > Android security patch level.

🔧 Temporary Workarounds

Application sandbox restrictions

android

Limit app permissions and install only from trusted sources to reduce attack surface

Disable unknown sources

android

Prevent installation of apps from outside Google Play Store

🧯 If You Can't Patch

  • Isolate affected devices on network segments with restricted access
  • Implement mobile device management (MDM) with strict app whitelisting policies

🔍 How to Verify

Check if Vulnerable:

Check Android security patch level in Settings > About phone > Android security patch level. If date is before October 2020, device is vulnerable.

Check Version:

adb shell getprop ro.build.version.security_patch

Verify Fix Applied:

Verify Android security patch level shows October 2020 or later date.

📡 Detection & Monitoring

Log Indicators:

  • Kernel panic logs
  • Unexpected process crashes with memory access violations
  • SELinux denials related to SoC components

Network Indicators:

  • Unusual outbound connections from system processes
  • Suspicious inter-process communication patterns

SIEM Query:

source="android_logs" AND ("kernel panic" OR "segmentation fault" OR "out of bounds")

🔗 References

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