CVE-2024-0444
📋 TL;DR
A stack-based buffer overflow vulnerability in GStreamer's AV1 video parser allows remote attackers to execute arbitrary code by providing specially crafted AV1 video files. This affects any application using vulnerable GStreamer versions to process AV1 video content. Attackers can achieve remote code execution in the context of the application processing the malicious file.
💻 Affected Systems
- GStreamer
- Applications using GStreamer for AV1 video processing
📦 What is this software?
Gstreamer by Gstreamer Project
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise via remote code execution leading to data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Application crash (denial of service) or limited code execution within the application's context, potentially leading to further privilege escalation.
If Mitigated
Application crash without code execution if exploit fails or security controls like ASLR/DEP prevent successful exploitation.
🎯 Exploit Status
Exploitation requires crafting malicious AV1 video files and getting them processed by vulnerable GStreamer instances. Attack vectors could include web applications, media players, or video processing services.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: GStreamer commit f368d63ecd89e01fd2cf0b1c4def5fc782b2c390 and later
Vendor Advisory: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/f368d63ecd89e01fd2cf0b1c4def5fc782b2c390
Restart Required: Yes
Instructions:
1. Update GStreamer to version containing commit f368d63ecd89e01fd2cf0b1c4def5fc782b2c390. 2. Restart all applications using GStreamer. 3. Rebuild any custom applications linked against GStreamer.
🔧 Temporary Workarounds
Disable AV1 video processing
linuxPrevent GStreamer from processing AV1 video files by disabling or removing AV1 codec support.
# Remove AV1 plugin if using modular GStreamer
sudo apt remove gstreamer1.0-plugins-bad # or equivalent for your distribution
Input validation for video files
allImplement strict validation of AV1 video files before processing through GStreamer.
🧯 If You Can't Patch
- Implement network segmentation to isolate systems using GStreamer from untrusted networks.
- Deploy application allowlisting to prevent execution of unauthorized code.
🔍 How to Verify
Check if Vulnerable:
Check GStreamer version and verify if commit f368d63ecd89e01fd2cf0b1c4def5fc782b2c390 is present in the source.Check Version:
gst-inspect-1.0 --versionVerify Fix Applied:
Verify GStreamer version includes commit f368d63ecd89e01fd2cf0b1c4def5fc782b2c390 and test with known safe AV1 video files.📡 Detection & Monitoring
Log Indicators:
- Application crashes when processing AV1 video files
- Memory access violation errors in application logs
Network Indicators:
- Unusual network traffic from systems processing video files
- AV1 video file downloads from suspicious sources
SIEM Query:
source="application_logs" AND ("segmentation fault" OR "buffer overflow" OR "access violation") AND process="gst*"🔗 References
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/f368d63ecd89e01fd2cf0b1c4def5fc782b2c390
- https://www.zerodayinitiative.com/advisories/ZDI-24-567/
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/f368d63ecd89e01fd2cf0b1c4def5fc782b2c390
- https://www.zerodayinitiative.com/advisories/ZDI-24-567/
