CVE-2025-70302
📋 TL;DR
A heap overflow vulnerability in GPAC's ghi_dmx_declare_opid_bin() function allows attackers to cause Denial of Service (DoS) through specially crafted input. This affects systems running GPAC v2.4.0 for multimedia processing. Attackers can crash the application by exploiting this memory corruption flaw.
💻 Affected Systems
- GPAC (Multimedia Framework)
📦 What is this software?
Gpac by Gpac
⚠️ Risk & Real-World Impact
Worst Case
Complete application crash leading to service unavailability, potentially allowing remote code execution if combined with other vulnerabilities.
Likely Case
Application crash and Denial of Service, disrupting multimedia processing services.
If Mitigated
Limited impact with proper input validation and memory protection mechanisms in place.
🎯 Exploit Status
Proof of concept available in GitHub repository demonstrates DoS capability. Requires crafted input to trigger the heap overflow.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
1. Monitor GPAC project for security updates. 2. Consider upgrading to newer versions when patch becomes available. 3. Apply any available security patches immediately.
🔧 Temporary Workarounds
Input Validation Filter
allImplement strict input validation for GPAC processing to reject malformed multimedia files.
# Configure GPAC to only accept trusted file sources
# Implement file hash verification before processing
Memory Protection
allEnable ASLR and DEP/Stack Protection on systems running GPAC.
# Linux: sysctl -w kernel.randomize_va_space=2
# Windows: Enable Data Execution Prevention (DEP)
🧯 If You Can't Patch
- Isolate GPAC instances in restricted network segments
- Implement strict file upload controls and scanning for multimedia files
🔍 How to Verify
Check if Vulnerable:
Check GPAC version: gpac -version or examine installed package version.Check Version:
gpac -version 2>/dev/null || gpac --versionVerify Fix Applied:
Verify GPAC version is newer than v2.4.0 when patch becomes available.📡 Detection & Monitoring
Log Indicators:
- GPAC process crashes
- Segmentation fault errors in system logs
- Abnormal memory usage patterns
Network Indicators:
- Unusual file uploads to GPAC services
- Multiple connection attempts with malformed data
SIEM Query:
process:gpac AND (event_id:1000 OR event_id:1001) OR memory_usage:>threshold