Red Hat Security Advisory 2017-2687-01 - instack-undercloud provides a collection of scripts and elements that can be used to install an OpenStack undercloud. Security Fix: A flaw was found in instack-undercloud where pre-install and security policy scripts used insecure temporary files. A local user could exploit this flaw to conduct a symbolic-link attack, allowing them to overwrite the contents of arbitrary files. This issue was discovered by Matthew Booth .
57ef17828da9f61aa0d97b870090b6b69b38a62115e3a7f514ba1dba2e728322