CVE-2024-49749
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on affected systems without user interaction by exploiting an integer overflow in the GIF processing library. It affects Android devices and potentially other systems using the vulnerable GIF library. Successful exploitation could lead to complete system compromise.
💻 Affected Systems
- Android
📦 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
Remote code execution leading to full system compromise, data theft, and persistent backdoor installation.
Likely Case
Application crash leading to denial of service, with potential for code execution in targeted attacks.
If Mitigated
Application crash with no code execution if memory protections are enabled.
🎯 Exploit Status
Exploitation requires sending a specially crafted GIF image to trigger the integer overflow.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: January 2025 Android security patch level
Vendor Advisory: https://source.android.com/security/bulletin/2025-01-01
Restart Required: No
Instructions:
1. Apply the January 2025 Android security patch. 2. Update affected applications that use the vulnerable GIF library. 3. Reboot device if prompted.
🔧 Temporary Workarounds
Disable GIF processing
allPrevent applications from processing GIF images where possible
🧯 If You Can't Patch
- Implement network filtering to block GIF images at perimeter
- Use application sandboxing to limit impact of potential exploitation
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android versionCheck Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify security patch level shows January 2025 or later📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing GIF files
- Memory access violation errors in system logs
Network Indicators:
- Unusual GIF file transfers to applications
- Multiple failed GIF processing attempts
SIEM Query:
source="android_logs" AND ("GIF" OR "dgif_lib" OR "DGifSlurp") AND ("crash" OR "segfault" OR "access violation")