CVE-2024-0081
📋 TL;DR
This vulnerability in NVIDIA's NeMo framework allows attackers to cause unlimited resource allocation in the ASR web application component, leading to server-side denial of service. It affects Ubuntu systems running vulnerable versions of the NeMo framework. The vulnerability is particularly concerning for systems exposed to untrusted networks.
💻 Affected Systems
- NVIDIA NeMo Framework
📦 What is this software?
Nemo by Nvidia
⚠️ Risk & Real-World Impact
Worst Case
Complete service disruption of the ASR web application, potentially affecting dependent services and causing extended downtime.
Likely Case
Degraded performance or temporary unavailability of the ASR web application service.
If Mitigated
Minimal impact with proper resource limits and network segmentation in place.
🎯 Exploit Status
The vulnerability involves resource allocation without limits, which typically requires minimal technical skill to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.21.2
Vendor Advisory: https://github.com/NVIDIA/NeMo/security/advisories/GHSA-x392-p65g-4rxx
Restart Required: Yes
Instructions:
1. Update NVIDIA NeMo to version 1.21.2 or later. 2. Restart the ASR web application service. 3. Verify the update was successful.
🔧 Temporary Workarounds
Implement Resource Limits
linuxConfigure system-level resource limits for the ASR web application process
ulimit -v [memory_limit]
ulimit -n [file_descriptor_limit]
Network Segmentation
linuxRestrict network access to the ASR web application to trusted sources only
iptables -A INPUT -p tcp --dport [asr_port] -s [trusted_ip] -j ACCEPT
iptables -A INPUT -p tcp --dport [asr_port] -j DROP
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure
- Monitor resource usage and implement automated alerts for abnormal consumption
🔍 How to Verify
Check if Vulnerable:
Check the NeMo version and verify if tools/asr_webapp is running on a version prior to 1.21.2Check Version:
python -c "import nemo; print(nemo.__version__)"Verify Fix Applied:
Confirm NeMo version is 1.21.2 or later and test ASR web application functionality📡 Detection & Monitoring
Log Indicators:
- Unusual memory allocation patterns
- ASR webapp process crashes or restarts
- High resource consumption alerts
Network Indicators:
- Unusual traffic patterns to ASR webapp port
- Multiple rapid requests from single source
SIEM Query:
source="asr_webapp" AND (memory_usage>threshold OR process_restart=true)