UNKNOWN CVSS 10.0
Published: 2012-09-10

CVE-2012-2784

libav libav Security Advisory (CVE-2012-2784)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2012-2784 impacting libav libav. Evaluated with CVSS Base Score of 10.0 (UNKNOWN).

Original NVD Description

Source: NIST NVD
Unspecified vulnerability in the decode_pic function in libavcodec/cavsdec.c in FFmpeg before 0.11, and Libav 0.7.x before 0.7.7 and 0.8.x before 0.8.4, has unknown impact and attack vectors, related to "width/height changing in CAVS," a different vulnerability than CVE-2012-2777.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
Low (AC:L)
No specialized conditions required

🎯 Affected Versions Matrix

Affected Product libav / libav
Affected Versions 0.8
Weakness Enumeration NVD-CWE-noinfo

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-2012-2784 impacting libav libav.

⚡ Nuclei Detection Template (YAML) cve-2012-2784.yaml
id: cve-2012-2784

info:
  name: libav libav - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2012-2784 affecting libav libav.
    Evaluation: Unspecified vulnerability in the decode_pic function in libavcodec/cavsdec.c in FFmpeg before 0.11, and Libav 0.7.x before 0.7.7 and 0.8.x before 0.8....
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2012-2784
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/Au:N/C:C/I:C/A:C
    cvss-score: 10.0
    cve-id: CVE-2012-2784
    cwe-id: NVD-CWE-noinfo
  tags: cve,cve-2012-2784,libav,libav,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "libav"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2012-2784.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2012-2784
# Target: libav libav | CVSS: 10.0 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2012-2784 (libav libav)...")
    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 libav libav scope (0.8).")
        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-2012-2784.sh
# Recommended Remediation & Patching Commands for CVE-2012-2784
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install libav 2>/dev/null || \
sudo dnf upgrade libav 2>/dev/null || \
sudo yum update libav

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

# 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-2012-2784 in libav libav?

Review vendor-specific security notices and update libav libav 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-2012-2784?

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-2012-2784?

CVE-2012-2784 is classified with a CVSS 3.1 Base Score of 10.0 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
10.0
UNKNOWN SEVERITY
CVE ID CVE-2012-2784
Weakness NVD-CWE-noinfo
Vendor libav
Product libav
Published 2012-09-10
Vector AV:N/AC:L/Au:N/C:C/I:C/A:C