UNKNOWN CVSS 2.1
Published: 2006-04-20

CVE-2006-1902

gnu gcc Security Advisory (CVE-2006-1902)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2006-1902 impacting gnu gcc. Evaluated with CVSS Base Score of 2.1 (UNKNOWN).

Original NVD Description

Source: NIST NVD
fold_binary in fold-const.c in GNU Compiler Collection (gcc) 4.1 improperly handles pointer overflow when folding a certain expr comparison to a corresponding offset comparison in cases other than EQ_EXPR and NE_EXPR, which might introduce buffer overflow vulnerabilities into applications that could be exploited by context-dependent attackers.NOTE: the vendor states that the essence of the issue is "not correctly interpreting an offset to a pointer as a signed value."

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Local (AV:L)
Requires local system execution permissions
Attack Complexity
Low (AC:L)
No specialized conditions required
Confidentiality
None (C:N)
No data confidentiality impact
Availability
None (A:N)
No system availability impact

🎯 Affected Versions Matrix

Affected Product gnu / gcc
Affected Versions 4.1
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-2006-1902 impacting gnu gcc.

⚡ Nuclei Detection Template (YAML) cve-2006-1902.yaml
id: cve-2006-1902

info:
  name: gnu gcc - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2006-1902 affecting gnu gcc.
    Evaluation: fold_binary in fold-const.c in GNU Compiler Collection (gcc) 4.1 improperly handles pointer overflow when folding a certain expr comparison to a corre...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2006-1902
  classification:
    cvss-metrics: CVSS:3.1/AV:L/AC:L/Au:N/C:N/I:P/A:N
    cvss-score: 2.1
    cve-id: CVE-2006-1902
    cwe-id: CWE-119
  tags: cve,cve-2006-1902,gnu,gcc,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "gcc"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2006-1902.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2006-1902
# Target: gnu gcc | CVSS: 2.1 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2006-1902 (gnu gcc)...")
    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 gnu gcc scope (4.1).")
        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-2006-1902.sh
# Recommended Remediation & Patching Commands for CVE-2006-1902
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install gcc 2>/dev/null || \
sudo dnf upgrade gcc 2>/dev/null || \
sudo yum update gcc

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

# 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-2006-1902 in gnu gcc?

Review vendor-specific security notices and update gnu gcc 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-2006-1902?

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-2006-1902?

CVE-2006-1902 is classified with a CVSS 3.1 Base Score of 2.1 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
2.1
UNKNOWN SEVERITY
CVE ID CVE-2006-1902
Weakness CWE-119
Vendor gnu
Product gcc
Published 2006-04-20
Vector AV:L/AC:L/Au:N/C:N/I:P/A:N