CVE-2024-31190
📋 TL;DR
An out-of-bounds read vulnerability in ONF libfluid's libfluid_msg module allows attackers to read memory beyond intended boundaries when processing MultipartReplyMeterConfig messages. This affects systems using libfluid 0.1.0 for OpenFlow protocol communication, potentially exposing sensitive information or causing crashes.
💻 Affected Systems
- Open Networking Foundation libfluid
📦 What is this software?
Libfluid Msg by Opennetworking
⚠️ Risk & Real-World Impact
Worst Case
Information disclosure of sensitive memory contents, potential denial of service through application crashes, or memory corruption leading to arbitrary code execution.
Likely Case
Application crashes causing denial of service, or information leakage of adjacent memory contents.
If Mitigated
Limited impact with proper network segmentation and input validation, potentially only causing crashes in isolated components.
🎯 Exploit Status
Exploitation requires sending crafted OpenFlow messages to vulnerable endpoints.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2024-31190
Restart Required: Yes
Instructions:
1. Monitor ONF for official patch release. 2. Apply patch when available. 3. Restart affected services.
🔧 Temporary Workarounds
Network Segmentation
linuxRestrict OpenFlow protocol access to trusted networks only
iptables -A INPUT -p tcp --dport 6653 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 6653 -j DROP
Input Validation
allImplement additional message validation before processing
🧯 If You Can't Patch
- Isolate affected systems in restricted network segments
- Implement strict firewall rules to limit OpenFlow protocol access
🔍 How to Verify
Check if Vulnerable:
Check if libfluid 0.1.0 is installed and OpenFlow services are runningCheck Version:
ldconfig -p | grep libfluid || find /usr -name '*libfluid*' -type fVerify Fix Applied:
Verify libfluid version is updated when patch becomes available📡 Detection & Monitoring
Log Indicators:
- Application crashes
- Memory access violation errors
- Unexpected OpenFlow message processing errors
Network Indicators:
- Unusual OpenFlow MultipartReplyMeterConfig messages
- Traffic spikes on OpenFlow ports
SIEM Query:
source="application_logs" AND ("segmentation fault" OR "out of bounds" OR "libfluid")