CVE-2023-48090
📋 TL;DR
GPAC 2.3-DEV-rev617-g671976fcc-master contains memory leaks in the extract_attributes function when processing M3U8 files. This vulnerability allows attackers to cause denial of service through resource exhaustion. Users and applications that process untrusted M3U8 files with this specific development version are affected.
💻 Affected Systems
- GPAC (Multimedia Framework)
📦 What is this software?
Gpac by Gpac
⚠️ Risk & Real-World Impact
Worst Case
Complete system resource exhaustion leading to denial of service, potentially crashing the application or system if memory consumption is uncontrolled.
Likely Case
Application instability, increased memory usage, and potential crashes during M3U8 file processing.
If Mitigated
Minimal impact with proper input validation and memory monitoring in place.
🎯 Exploit Status
Exploitation requires processing malicious M3U8 files; no authentication needed for file processing.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check latest GPAC development version or stable release
Vendor Advisory: https://github.com/gpac/gpac/issues/2680
Restart Required: Yes
Instructions:
1. Update to latest GPAC version from official repository. 2. Recompile if using source. 3. Restart any services using GPAC.
🔧 Temporary Workarounds
Disable M3U8 Processing
allDisable or restrict processing of M3U8 files in GPAC configuration
Configure GPAC to reject M3U8 files or use input filtering
Memory Monitoring
allImplement memory usage monitoring and restart services when thresholds exceeded
Set up monitoring for GPAC process memory usage
🧯 If You Can't Patch
- Implement strict input validation for M3U8 files
- Run GPAC in containerized environment with memory limits
🔍 How to Verify
Check if Vulnerable:
Check GPAC version with 'gpac -version' and verify if it matches affected versionCheck Version:
gpac -versionVerify Fix Applied:
Update to latest version and test processing of M3U8 files while monitoring memory usage📡 Detection & Monitoring
Log Indicators:
- Unusual memory consumption patterns
- GPAC crashes during M3U8 processing
- Repeated memory allocation failures
Network Indicators:
- Multiple M3U8 file uploads to GPAC endpoints
- Unusual traffic patterns to M3U8 processing services
SIEM Query:
Process:gpac AND (EventID:1000 OR MemoryUsage > threshold)