CVE-2023-21193
📋 TL;DR
This CVE describes an integer overflow vulnerability in Android's VideoFrame component that could allow remote information disclosure without user interaction. The vulnerability affects Android 13 devices and could be exploited to cause application crashes or leak sensitive memory contents.
💻 Affected Systems
- Android
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Remote attacker could cause application crashes leading to denial of service or potentially leak sensitive memory contents from affected applications.
Likely Case
Application crashes or instability when processing malicious video content, potentially leading to information disclosure through memory dumps.
If Mitigated
Minimal impact with proper patching; unpatched systems remain vulnerable to remote exploitation.
🎯 Exploit Status
No public exploit code available, but vulnerability allows remote exploitation without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Android Security Patch Level June 2023 or later
Vendor Advisory: https://source.android.com/security/bulletin/pixel/2023-06-01
Restart Required: Yes
Instructions:
1. Check for Android system updates in Settings > System > System update. 2. Install the June 2023 security patch or later. 3. Restart device after installation.
🔧 Temporary Workarounds
Disable vulnerable video processing
androidRestrict or disable video processing in affected applications if possible
🧯 If You Can't Patch
- Isolate affected devices from untrusted networks
- Implement network filtering to block malicious video content delivery
🔍 How to Verify
Check if Vulnerable:
Check Android version and security patch level in Settings > About phone > Android versionCheck Version:
Settings > About phone > Android versionVerify Fix Applied:
Verify security patch level is June 2023 or later in Settings > About phone > Android version📡 Detection & Monitoring
Log Indicators:
- Application crashes related to video processing
- Memory access violations in system logs
Network Indicators:
- Unusual video content delivery patterns
- Multiple video processing failures
SIEM Query:
Search for application crashes containing 'VideoFrame' or 'integer overflow' in Android system logs