Ansible before version 2.3 has an input validation vulnerability in the handling of data sent from client systems. An attacker with control over a client system being managed by Ansible, and the ability to send facts back to the Ansible server, could use this flaw to execute arbitrary code on the Ansible server using the Ansible server privileges.
access.redhat.com/errata/RHSA-2017:1244
access.redhat.com/errata/RHSA-2017:1334
access.redhat.com/errata/RHSA-2017:1476
access.redhat.com/errata/RHSA-2017:1499
access.redhat.com/errata/RHSA-2017:1599
access.redhat.com/errata/RHSA-2017:1685
bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7466
github.com/ansible/ansible
github.com/ansible/ansible/issues/24186
nvd.nist.gov/vuln/detail/CVE-2017-7466
web.archive.org/web/20170701161323/www.securityfocus.com/bid/97595