CVE-2024-43091
📋 TL;DR
This vulnerability allows remote code execution via an integer overflow in Skia's filterMask function, leading to out-of-bounds write. It affects Android devices using vulnerable Skia graphics library versions. No user interaction is required for exploitation.
💻 Affected Systems
- Android devices using Skia graphics library
📦 What is this software?
Android by Google
Android by Google
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Full device compromise allowing attacker to execute arbitrary code with system privileges, potentially leading to data theft, persistence, or device takeover.
Likely Case
Remote code execution leading to malware installation, data exfiltration, or device enrollment in botnets.
If Mitigated
Limited impact if devices are patched or network segmentation prevents exploitation attempts.
🎯 Exploit Status
No user interaction needed; exploitation requires crafting malicious graphics content to trigger the integer overflow.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: November 2024 Android Security Patch or later
Vendor Advisory: https://source.android.com/security/bulletin/2024-11-01
Restart Required: Yes
Instructions:
1. Check for Android system updates in Settings > System > System update. 2. Apply November 2024 security patch or later. 3. Restart device after update installation.
🔧 Temporary Workarounds
Disable automatic media processing
androidPrevent automatic processing of untrusted graphics content in applications
🧯 If You Can't Patch
- Segment vulnerable devices from internet access
- Implement application allowlisting to restrict untrusted apps
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android version. If patch level is earlier than November 2024, device is vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify Android security patch level shows November 2024 or later in Settings > About phone > Android version.📡 Detection & Monitoring
Log Indicators:
- Crash logs from Skia library
- Unexpected process terminations in graphics services
Network Indicators:
- Unusual outbound connections from graphics-related processes
SIEM Query:
process_name:skia AND (event_type:crash OR memory_access_violation)