The host is installed with OpenSSL 1.0.1 before 1.0.1s or 1.0.2 before 1.0.2g and is prone to a memory leak vulnerability. A flaw is present in the application, which fails to handle the returned pointer which was sometimes newly allocated and sometimes owned by the callee. Successful exploitation allows remote attacker to connect with an invalid username and cause a memory leak of around 300 bytes per connection.