CVE-2025-63397
📋 TL;DR
This vulnerability in OneFlow v0.9.0 allows attackers to trigger a segmentation fault through improper input validation during broadcasting and type conversion operations. Attackers can exploit this by passing specially crafted Python sequences to the native code. This affects any system running the vulnerable version of OneFlow.
💻 Affected Systems
- OneFlow
📦 What is this software?
Oneflow by Oneflow
⚠️ Risk & Real-World Impact
Worst Case
Denial of service causing application crashes and potential data corruption in systems using OneFlow for critical operations.
Likely Case
Application instability and crashes when processing malicious or malformed input sequences.
If Mitigated
Minimal impact if input validation is performed externally before reaching OneFlow functions.
🎯 Exploit Status
Exploitation requires ability to pass malicious Python sequences to OneFlow's broadcasting/type conversion functions.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check GitHub issue #10666 for latest patched version
Vendor Advisory: https://github.com/Oneflow-Inc/oneflow/issues/10666
Restart Required: Yes
Instructions:
1. Check the GitHub issue #10666 for patch availability
2. Update OneFlow to the latest patched version
3. Restart any services using OneFlow
4. Test broadcasting/type conversion functionality
🔧 Temporary Workarounds
Input Validation Wrapper
allImplement input validation before passing sequences to OneFlow broadcasting/type conversion functions
# Python example: Validate input before OneFlow processing
def validate_sequence(input_seq):
# Add custom validation logic
if not isinstance(input_seq, (list, tuple)):
raise ValueError('Invalid sequence type')
# Additional validation as needed
return True
🧯 If You Can't Patch
- Implement strict input validation for all data passed to OneFlow broadcasting functions
- Isolate OneFlow processing to trusted environments only
🔍 How to Verify
Check if Vulnerable:
Check if running OneFlow v0.9.0 and test with malformed sequences in broadcasting operationsCheck Version:
python -c "import oneflow; print(oneflow.__version__)"Verify Fix Applied:
Test with previously crashing sequences after update to confirm no segmentation faults📡 Detection & Monitoring
Log Indicators:
- Segmentation fault errors in application logs
- OneFlow process crashes
- Python core dumps
Network Indicators:
- Unusual sequence patterns sent to OneFlow endpoints
SIEM Query:
source='application.logs' AND ("segmentation fault" OR "core dumped") AND process="python"