MEDIUM CVSS 6.5
Published: 2017-06-26

CVE-2014-8127

libtiff libtiff Security Advisory (CVE-2014-8127)
↗ Official NIST NVD Record
Seeking technical exploit breakdowns or verified PoC code for CVE-2014-8127?
🔬 Search Writeups & Exploit Archive →

CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2014-8127 impacting libtiff libtiff. Evaluated with CVSS Base Score of 6.5 (MEDIUM).

Original NVD Description

Source: NIST NVD
LibTIFF 4.0.3 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a crafted TIFF image to the (1) checkInkNamesString function in tif_dir.c in the thumbnail tool, (2) compresscontig function in tiff2bw.c in the tiff2bw tool, (3) putcontig8bitCIELab function in tif_getimage.c in the tiff2rgba tool, LZWPreDecode function in tif_lzw.c in the (4) tiff2ps or (5) tiffdither tool, (6) NeXTDecode function in tif_next.c in the tiffmedian tool, or (7) TIFFWriteDirectoryTagLongLong8Array function in tif_dirwrite.c in the tiffset tool.

📊 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
High (A:H)
Total denial of service or shutdown

🎯 Affected Versions Matrix

Affected Product libtiff / libtiff
Affected Versions 4.0.3
Weakness Enumeration CWE-125

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-2014-8127 impacting libtiff libtiff.

⚡ Nuclei Detection Template (YAML) cve-2014-8127.yaml
id: cve-2014-8127

info:
  name: libtiff libtiff - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: medium
  description: |
    Automated signature & scanner for CVE-2014-8127 affecting libtiff libtiff.
    Evaluation: LibTIFF 4.0.3 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via a crafted TIFF image to the (1) checkInkNamesStr...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2014-8127
  classification:
    cvss-metrics: CVSS:3.1/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    cvss-score: 6.5
    cve-id: CVE-2014-8127
    cwe-id: CWE-125
  tags: cve,cve-2014-8127,libtiff,libtiff,medium

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "libtiff"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2014-8127.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2014-8127
# Target: libtiff libtiff | CVSS: 6.5 (MEDIUM)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2014-8127 (libtiff libtiff)...")
    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 libtiff libtiff scope (4.0.3).")
        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-2014-8127.sh
# Recommended Remediation & Patching Commands for CVE-2014-8127
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install libtiff 2>/dev/null || \
sudo dnf upgrade libtiff 2>/dev/null || \
sudo yum update libtiff

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

# 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-2014-8127 in libtiff libtiff?

Review vendor-specific security notices and update libtiff libtiff 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-2014-8127?

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-2014-8127?

CVE-2014-8127 is classified with a CVSS 3.1 Base Score of 6.5 (MEDIUM). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
6.5
MEDIUM SEVERITY
CVE ID CVE-2014-8127
Weakness CWE-125
Vendor libtiff
Product libtiff
Published 2017-06-26
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H