Ansible before 1.9.2 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
{ "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "1.5.4+dfsg-1ubuntu0.1~esm3", "binary_name": "ansible" }, { "binary_version": "1.5.4+dfsg-1ubuntu0.1~esm3", "binary_name": "ansible-doc" }, { "binary_version": "1.5.4+dfsg-1ubuntu0.1~esm3", "binary_name": "ansible-fireball" }, { "binary_version": "1.5.4+dfsg-1ubuntu0.1~esm3", "binary_name": "ansible-node-fireball" } ] }