The issue concerns multiple vulnerabilities in the curl package and Oracle products, which can lead to breaches of confidentiality, integrity, and availability of protected information. Exploitation can be done remotely. The SSL protocol, used in certain configurations in various products, including Microsoft Windows, Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, Opera, and others, is vulnerable to a "BEAST" attack. This attack allows man-in-the-middle attackers to obtain plaintext HTTP headers via a blockwise chosen-boundary attack on an HTTPS session, in conjunction with JavaScript code that uses the HTML5 WebSocket API, Java URLConnection API, or Silverlight WebClient API.