Automated CVE Response Workflows

Implement automated workflows for CVE detection and response:
# .github/workflows/cve-response.yml
name: Automated CVE Response

on:
  schedule:
    - cron: '0 */6 * * *'  # Every 6 hours
  workflow_dispatch:

jobs:
  scan-and-respond:
    runs-on: ubuntu-latest
    
    steps:
    - name: Checkout repository
      uses: actions/checkout@v3
      
    - name: Set up Python
      uses: actions/setup-python@v4
      with:
        python-version: '3.10'
        
    - name: Install dependencies
      run: |
        pip install -r requirements.txt
        curl -sfL https://raw.githubusercontent.com/aquasecurity/trivy/main/contrib/install.sh | sh -s -- -b /usr/local/bin
        
    - name: Scan all images
      id: scan
      run: |
        python scripts/scan_all_images.py > scan_results.json
        
    - name: Analyze CVEs
      id: analyze
      run: |
        python scripts/analyze_cves.py scan_results.json > cve_analysis.json
        
        # Check for critical CVEs
        CRITICAL_COUNT=$(jq '.summary.critical_count' cve_analysis.json)
        echo "critical_count=$CRITICAL_COUNT" >> $GITHUB_OUTPUT
        
        # Check for exploitable CVEs
        EXPLOITABLE=$(jq '.summary.exploitable_count' cve_analysis.json)
        echo "exploitable_count=$EXPLOITABLE" >> $GITHUB_OUTPUT
        
    - name: Generate patches
      if: steps.analyze.outputs.critical_count > 0
      run: |
        python scripts/generate_patches.py cve_analysis.json
        
    - name: Create pull requests
      if: steps.analyze.outputs.critical_count > 0
      uses: peter-evans/create-pull-request@v5
      with:
        commit-message: 'fix: automated CVE remediation'
        title: '[Security] Automated CVE fixes'
        body: |
          ## Automated CVE Remediation
          
          This PR contains automated fixes for detected CVEs:
          
          - Critical CVEs: ${{ steps.analyze.outputs.critical_count }}
          - Exploitable CVEs: ${{ steps.analyze.outputs.exploitable_count }}
          
          ### Changes
          - Updated base images to patched versions
          - Upgraded vulnerable dependencies
          - Applied security configurations
          
          Please review carefully before merging.
        branch: automated-cve-fixes
        labels: security, automated
        
    - name: Send alerts
      if: steps.analyze.outputs.exploitable_count > 0
      run: |
        python scripts/send_security_alerts.py cve_analysis.json
        
    - name: Update security dashboard
      if: always()
      run: |
        python scripts/update_dashboard.py cve_analysis.json