RHSA-2017:2687 - Security Advisory
Moderate: instack-undercloud security update
Security Advisory: Moderate
An update for instack-undercloud is now available for Red Hat OpenStack Platform 8.0 (Liberty) director.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
instack-undercloud provides a collection of scripts and elements that can be used to install an OpenStack undercloud (using python-instack).
- 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. (CVE-2017-7549)
This issue was discovered by Matthew Booth (Red Hat).
For details on how to apply this update, which includes the changes described in this advisory, refer to:
- Red Hat OpenStack 8 x86_64
- BZ - 1324894 - Tuskar is not deprecated post upgrade [osp-8]
- BZ - 1477403 - CVE-2017-7549 instack-undercloud: uses hardcoded /tmp paths
Red Hat OpenStack 8