OSSA-2016-003: Heat denial of service through template-validate

Date:January 19, 2016


  • Heat: <=2015.1.2, ==5.0.0


Steven Hardy from Red Hat reported a vulnerability in Heat template validation. By referencing a local file like /dev/zero, an authenticated user may trick the heat engine service to load arbitrary local file content resulting in a Denial of Service attack through memory exhaustion. Note that the file content is not written back to the user, though the user can determine if a file exists and if it is readable by heat-engine. All Heat setups are affected.


  • Steven Hardy from Red Hat (CVE-2015-5295)


  • This fix will be included in future 2015.1.3 (kilo) and 5.0.1 (liberty) releases.