CVE-2024-31184
📋 TL;DR
An out-of-bounds read vulnerability in libfluid's libfluid_msg module allows attackers to read memory beyond allocated buffers when processing OpenFlow meter statistics. This affects systems using libfluid 0.1.0 for SDN/OpenFlow implementations, 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 or denial of service, with possible information leakage from adjacent memory regions.
If Mitigated
Limited impact if proper memory protections (ASLR, DEP) are enabled and the application runs with minimal privileges.
🎯 Exploit Status
Exploitation requires sending crafted OpenFlow messages to vulnerable endpoints. No public exploit code is known at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in available information - check upstream repository
Vendor Advisory: https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2024-31184
Restart Required: Yes
Instructions:
1. Check libfluid version with 'ldconfig -p | grep libfluid'. 2. Update to patched version from upstream repository. 3. Recompile applications using libfluid. 4. Restart affected services.
🔧 Temporary Workarounds
Disable Meter Statistics
allConfigure OpenFlow controllers to disable meter statistics processing if not required
Network Segmentation
allRestrict OpenFlow traffic to trusted sources only
🧯 If You Can't Patch
- Implement strict network access controls to limit OpenFlow traffic to authorized controllers only
- Deploy memory protection mechanisms (ASLR, DEP) and run applications with minimal privileges
🔍 How to Verify
Check if Vulnerable:
Check libfluid version: 'strings /usr/lib/libfluid* | grep -i version' or check package manager for libfluid 0.1.0Check Version:
ldconfig -p | grep libfluid || find /usr -name '*libfluid*' -exec strings {} \; | grep -i versionVerify Fix Applied:
Verify updated version no longer contains vulnerable 0.1.0 code and test with OpenFlow meter statistics messages📡 Detection & Monitoring
Log Indicators:
- Application crashes with segmentation faults
- Unexpected memory access errors in system logs
- Abnormal OpenFlow message processing errors
Network Indicators:
- Unusual OpenFlow meter statistics requests
- Malformed OpenFlow packets to port 6653/tcp
SIEM Query:
source="*libfluid*" AND ("segmentation fault" OR "out of bounds" OR "memory violation")