Santesoft Sante PACS Server Stack-based Buffer Overflow

During login to the web server in "Sante PACS Server.exe", OpenSSL function EVP_DecryptUpdate is called to decrypt the username and password. A fixed 0x80-byte stack-based buffer is passed to the function as the output buffer. A stack-based buffer overflow exists if a long encrypted username or password is supplied by an unauthenticated remote attacker.