MEDIUM CVSS 6.2
Published: 2025-04-10

CVE-2025-29916

oisf suricata Security Advisory (CVE-2025-29916)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2025-29916 impacting oisf suricata. Evaluated with CVSS Base Score of 6.2 (MEDIUM).

Original NVD Description

Source: NIST NVD
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Datasets declared in rules have an option to specify the `hashsize` to use. This size setting isn't properly limited, so the hash table allocation can be large. Untrusted rules can lead to large memory allocations, potentially leading to denial of service due to resource starvation. This vulnerability is fixed in 7.0.9.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
None (PR:N)
Unauthenticated execution
User Interaction
None (UI:N)
Zero human interaction required
Scope
Unchanged (S:U)
Confined to same security context
Confidentiality
None (C:N)
No data confidentiality impact
Integrity
None (I:N)
No system modification impact
Availability
High (A:H)
Total denial of service or shutdown

🎯 Affected Versions Matrix

Affected Product oisf / suricata
Affected Versions *
Weakness Enumeration CWE-770

Security Research Arsenal: Nuclei Detection Template & PoC Exploit Probe

High-Intent Research Tool

Ready-to-use security scanner signatures, active verification probe skeletons, and remediation playbooks for CVE-2025-29916 impacting oisf suricata.

⚡ Nuclei Detection Template (YAML) cve-2025-29916.yaml
id: cve-2025-29916

info:
  name: oisf suricata - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2025-29916 affecting oisf suricata.
    Evaluation: Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Datasets declared in rules have ...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2025-29916
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    cvss-score: 6.2
    cve-id: CVE-2025-29916
    cwe-id: CWE-770
  tags: cve,cve-2025-29916,oisf,suricata,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "suricata"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2025-29916.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2025-29916
# Target: oisf suricata | CVSS: 6.2 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2025-29916 (oisf suricata)...")
    headers = {
        "User-Agent": "CyberVault-Audit-Scanner/2.0",
        "Accept": "*/*"
    }
    try:
        r = requests.get(f"{target_url.rstrip('/')}/", headers=headers, timeout=8, verify=False)
        print(f"[+] Server Response: HTTP {r.status_code} | Server Banner: {r.headers.get('Server', 'Unknown')}")
        if r.status_code < 500:
            print(f"[!] Target reachable. Verify version against oisf suricata scope (*).")
        return True
    except Exception as e:
        print(f"[-] Connection Error: {e}")
        return False

if __name__ == '__main__':
    url = sys.argv[1] if len(sys.argv) > 1 else "http://localhost:8080"
    verify_vulnerability(url)
🛡️ Quick Patch & Remediation Script (Bash) patch_cve-2025-29916.sh
# Recommended Remediation & Patching Commands for CVE-2025-29916
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install suricata 2>/dev/null || \
sudo dnf upgrade suricata 2>/dev/null || \
sudo yum update suricata

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i suricata 2>/dev/null || rpm -qa | grep -i suricata

# 3. Docker container & image vulnerability scan:
docker scan $(docker ps -q) 2>/dev/null || echo "Verify upstream base images in Dockerfile."

🛡️ Remediation & Security Action

  • Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
  • Verification: Inspect installed binary packages and package manager versions for affected component releases.
  • Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.
⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

🔗 Verified Technical References

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2025-29916 in oisf suricata?

Review vendor-specific security notices and update oisf suricata packages to the latest patched release immediately. If immediate upgrading is restricted by change windows, isolate affected network ports and enforce least-privilege access boundaries.

Is there an active exploit or public PoC for CVE-2025-29916?

No weaponized public exploit has been confirmed in public threat streams yet. Continuous surveillance is active across GitHub and security feeds.

What is the CVSS 3.1 severity rating and impact for CVE-2025-29916?

CVE-2025-29916 is classified with a CVSS 3.1 Base Score of 6.2 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
6.2
MEDIUM SEVERITY
CVE ID CVE-2025-29916
Weakness CWE-770
Vendor oisf
Product suricata
Published 2025-04-10
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H