Description
The template-validate command in OpenStack Orchestration API (Heat) before 2015.1.3 (kilo) and 5.0.x before 5.0.1 (liberty) allows remote authenticated users to cause a denial of service (memory consumption) or determine the existence of local files via the resource type in a template, as demonstrated by file:///dev/zero.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | heat | 1:6.0.0~rc3-1 | — |
| Debian 13 | heat | 1:6.0.0~rc3-1 | — |
| Debian 12 | heat | 1:6.0.0~rc3-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenStack 7 | openstack-heat +5 | 2015.1.2-9.el7ost | RHSA-2016:0266 |
| Red Hat OpenStack 6 | openstack-heat +5 | 2014.2.3-11.el7ost | RHSA-2016:0442 |
| Red Hat OpenStack 5 | openstack-heat +5 | 2014.1.5-7.el6ost | RHSA-2016:0441, RHSA-2016:0440 |
Advisories 4
- RHSA-2016:0442 Red Hat Security Advisory: openstack-heat security advisory Red Hat Security Advisories (RHSA) · Aug 1, 2026
- RHSA-2016:0440 Red Hat Security Advisory: openstack-heat bug fix and security advisory Red Hat Security Advisories (RHSA) · Aug 1, 2026
- RHSA-2016:0441 Red Hat Security Advisory: openstack-heat bug fix and security advisory Red Hat Security Advisories (RHSA) · Aug 1, 2026
- RHSA-2016:0266 Red Hat Security Advisory: openstack-heat bug fix and security advisory Red Hat Security Advisories (RHSA) · Aug 1, 2026