MEDIUM CVSS 4.3
Published: 2022-11-13

CVE-2022-3965

ffmpeg ffmpeg Security Advisory (CVE-2022-3965)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2022-3965 impacting ffmpeg ffmpeg. Evaluated with CVSS Base Score of 4.3 (MEDIUM).

Original NVD Description

Source: NIST NVD
A vulnerability classified as problematic was found in ffmpeg. This vulnerability affects the function smc_encode_stream of the file libavcodec/smcenc.c of the component QuickTime Graphics Video Encoder. The manipulation of the argument y_size leads to out-of-bounds read. The attack can be initiated remotely. The name of the patch is 13c13109759090b7f7182480d075e13b36ed8edd. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-213544.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
Low (AC:L)
No specialized conditions required
Privileges Required
None (PR:N)
Unauthenticated execution
User Interaction
Required (UI:R)
User must click or open resource
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
Low (A:L)
Partial service performance degradation

🎯 Affected Versions Matrix

Affected Product ffmpeg / ffmpeg
Affected Versions *
Weakness Enumeration CWE-119

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-2022-3965 impacting ffmpeg ffmpeg.

⚡ Nuclei Detection Template (YAML) cve-2022-3965.yaml
id: cve-2022-3965

info:
  name: ffmpeg ffmpeg - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2022-3965 affecting ffmpeg ffmpeg.
    Evaluation: A vulnerability classified as problematic was found in ffmpeg. This vulnerability affects the function smc_encode_stream of the file libavcodec/smcenc...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2022-3965
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
    cvss-score: 4.3
    cve-id: CVE-2022-3965
    cwe-id: CWE-119
  tags: cve,cve-2022-3965,ffmpeg,ffmpeg,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "ffmpeg"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2022-3965.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2022-3965
# Target: ffmpeg ffmpeg | CVSS: 4.3 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2022-3965 (ffmpeg ffmpeg)...")
    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 ffmpeg ffmpeg 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-2022-3965.sh
# Recommended Remediation & Patching Commands for CVE-2022-3965
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install ffmpeg 2>/dev/null || \
sudo dnf upgrade ffmpeg 2>/dev/null || \
sudo yum update ffmpeg

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

# 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.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2022-3965 in ffmpeg ffmpeg?

Review vendor-specific security notices and update ffmpeg ffmpeg 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-2022-3965?

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-2022-3965?

CVE-2022-3965 is classified with a CVSS 3.1 Base Score of 4.3 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
4.3
MEDIUM SEVERITY
CVE ID CVE-2022-3965
Weakness CWE-119
Vendor ffmpeg
Product ffmpeg
Published 2022-11-13
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L