CVE-2025-25945
📋 TL;DR
This vulnerability in Bento4 v1.6.0-641 allows attackers to read sensitive information from memory through improper handling of MP4 files. It affects applications using Bento4 for MP4 processing, particularly media servers, video editors, and streaming services. The information disclosure could include application data, memory contents, or potentially credentials.
💻 Affected Systems
- Bento4
📦 What is this software?
Bento4 by Axiosys
⚠️ Risk & Real-World Impact
Worst Case
Complete memory dump leading to credential theft, sensitive data exposure, or enabling further attacks by revealing memory layout.
Likely Case
Partial information disclosure revealing application data, file paths, or limited memory contents that could aid attackers.
If Mitigated
Minimal impact with proper input validation and memory isolation in place.
🎯 Exploit Status
Exploitation requires crafting malicious MP4 files and getting them processed by vulnerable Bento4 instances.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check GitHub issue for latest patched version
Vendor Advisory: https://github.com/axiomatic-systems/Bento4/issues/993
Restart Required: Yes
Instructions:
1. Monitor GitHub issue #993 for official patch. 2. Update Bento4 to patched version when available. 3. Rebuild any applications using Bento4 libraries. 4. Restart affected services.
🔧 Temporary Workarounds
Input Validation
allImplement strict validation of MP4 files before processing with Bento4
Sandbox Processing
allIsolate Bento4 processing in containerized or sandboxed environments
🧯 If You Can't Patch
- Implement network segmentation to isolate Bento4 processing systems
- Deploy application allowlisting to prevent unauthorized Bento4 execution
🔍 How to Verify
Check if Vulnerable:
Check Bento4 version: bento4 --version or examine linked library versions in applicationsCheck Version:
bento4 --versionVerify Fix Applied:
Verify updated version no longer contains vulnerable code in Mp4Fragment.cpp and Ap4DescriptorFactory.cpp📡 Detection & Monitoring
Log Indicators:
- Unusual MP4 file processing errors
- Memory access violations in Bento4 processes
Network Indicators:
- Unexpected MP4 file uploads to processing endpoints
SIEM Query:
Process: 'bento4' AND (Event: 'AccessViolation' OR Event: 'SegmentationFault')