CVE-2023-48014
📋 TL;DR
This CVE describes a stack overflow vulnerability in GPAC's HEVC video parser that could allow remote code execution. Attackers could exploit this by crafting malicious HEVC video files. Users and applications processing untrusted HEVC video content with vulnerable GPAC versions are affected.
💻 Affected Systems
- GPAC (Multimedia Framework)
📦 What is this software?
Gpac by Gpac
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with the privileges of the GPAC process, potentially leading to complete system compromise.
Likely Case
Application crash (denial of service) when processing malicious HEVC content.
If Mitigated
No impact if patched version is used or if untrusted HEVC content is not processed.
🎯 Exploit Status
Exploitation requires crafting malicious HEVC video files. No public exploit code has been identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Fixed in commit 66abf0887c89c29a484d9e65e70882794e9e3a1b
Vendor Advisory: https://github.com/gpac/gpac/commit/66abf0887c89c29a484d9e65e70882794e9e3a1b
Restart Required: Yes
Instructions:
1. Update GPAC to latest version from official repository. 2. Rebuild from source if using development version. 3. Restart any applications using GPAC libraries.
🔧 Temporary Workarounds
Disable HEVC Processing
allConfigure applications to not process HEVC/H.265 video content
Input Validation
allImplement strict validation of HEVC video files before processing
🧯 If You Can't Patch
- Isolate GPAC applications in restricted environments with minimal privileges
- Implement network segmentation to limit exposure of video processing services
🔍 How to Verify
Check if Vulnerable:
Check GPAC version and compare against vulnerable development versions. Use 'gpac -version' or check build commit hash.Check Version:
gpac -version 2>/dev/null || gpac --version 2>/dev/null || strings $(which gpac) 2>/dev/null | grep -i versionVerify Fix Applied:
Verify GPAC version includes commit 66abf0887c89c29a484d9e65e70882794e9e3a1b or later.📡 Detection & Monitoring
Log Indicators:
- GPAC process crashes
- Segmentation faults in media processing
- Abnormal termination of video processing applications
Network Indicators:
- Unusual HEVC file uploads to media processing services
- Multiple failed video processing attempts
SIEM Query:
process.name:"gpac" AND event.action:"crash" OR process.name:"gpac" AND event.outcome:"failure"