CVE-2013-6391: Canonical Ubuntu Linux

Medium severity, CVSS 5.8. EPSS: 2.2% chance of exploitation in the next 30 days.

The ec2tokens API in OpenStack Identity (Keystone) before Havana 2013.2.1 and Icehouse before icehouse-2 does not return a trust-scoped token when one is received, which allows remote trust users to gain privileges by generating EC2 credentials from a trust-scoped token and using them in an ec2tokens API request.

Affected products

• Canonical Ubuntu Linux: version 13.10 only
• Openstack Keystone: from 2013.2, before 2013.2.1 (fixed in 2013.2.1)
• Red Hat Openstack: version 4.0 only

Published 2013-12-14. Last modified 2026-06-17.