It was discovered that Tornado incorrectly handled certain redirect. An remote attacker could possibly use this issue to redirect a user to an arbitrary web site and conduct a phishing attack by having user access a specially crafted URL.
{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "binaries": [ { "python3-tornado": "4.2.1-1ubuntu3.1+esm1", "python-tornado": "4.2.1-1ubuntu3.1+esm1" } ] }