CVE-2019-2201

7.8 HIGH

📋 TL;DR

This vulnerability allows remote code execution through an out-of-bounds write in Android's JPEG processing library. Attackers can exploit this by tricking users into opening malicious JPEG images, potentially gaining control of the device. Affected users include anyone running Android 8.0 through 10 on ARM64 devices.

💻 Affected Systems

Products:
  • Android
Versions: Android 8.0 through 10
Operating Systems: Android
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects ARM64 architecture devices. Requires user interaction to open malicious JPEG image.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full device compromise allowing attackers to execute arbitrary code with the privileges of the vulnerable process, potentially leading to data theft, surveillance, or further network penetration.

🟠

Likely Case

App crashes or limited code execution within the sandboxed process context, potentially enabling privilege escalation or data exfiltration from the affected application.

🟢

If Mitigated

Process crash with no code execution if exploit fails or security controls like ASLR/stack protection are effective.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: LOW

🎯 Exploit Status

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

Exploitation requires user interaction (opening malicious image). No public exploit code identified in references.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Android Security Bulletin November 2019 and later

Vendor Advisory: https://source.android.com/docs/security/bulletin/2019-11-01

Restart Required: Yes

Instructions:

1. Check for Android system updates in Settings > System > Advanced > System update. 2. Install available security updates. 3. Reboot device after installation.

🔧 Temporary Workarounds

Disable automatic image processing

android

Prevent automatic JPEG processing in vulnerable applications

🧯 If You Can't Patch

  • Restrict image sources to trusted applications only
  • Use alternative image viewing applications not affected by this vulnerability

🔍 How to Verify

Check if Vulnerable:

Check Android version in Settings > About phone > Android version. If version is 8.0, 8.1, 9, or 10, device may be vulnerable.

Check Version:

adb shell getprop ro.build.version.release

Verify Fix Applied:

Verify Android security patch level is November 2019 or later in Settings > About phone > Android security patch level.

📡 Detection & Monitoring

Log Indicators:

  • Process crashes in media processing services
  • Unexpected memory access violations in libjpeg-turbo

Network Indicators:

  • Unusual image downloads to vulnerable devices
  • Suspicious image file transfers

SIEM Query:

Process:name="media" AND EventID:1000 OR ExceptionCode:c0000005

🔗 References

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