CVE-2015-5295 – openstack-heat: Vulnerability in Heat template validation leading to DoS

https://notcve.org/view.php?id=CVE-2015-5295

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. El comando template-validate en OpenStack Orchestration API (Heat) en versiones anteriores a 2015.1.3 (kilo) y 5.0.x en versiones anteriores a 5.0.1 (liberty) permite a usuarios remotos autenticados provocar una denegación de servicio (consumo de memoria) o determinar la existencia de archivos locales a través del tipo de recurso en una plantilla, según lo demostrado por el archivo:///dev/zero. A vulnerability was discovered in the OpenStack Orchestration service (heat), where a specially formatted template could be used to trick the heat-engine service into opening a local file. Although the file contents are never disclosed to the end user, an OpenStack-authenticated attacker could use this flaw to cause a denial of service or determine whether a given file name is present on the server. • http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176700.html http://rhn.redhat.com/errata/RHSA-2016-0266.html http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html http://www.securityfocus.com/bid/81438 https://bugs.launchpad.net/heat/+bug/1496277 https://security.openstack.org/ossa/OSSA-2016-003.html https://access.redhat.com/security/cve/CVE-2015-5295 https://bugzilla.redhat.com/show_bug.cgi?id=1298295 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-400: Uncontrolled Resource Consumption •