{"id":"UBUNTU-CVE-2020-17376","details":"An issue was discovered in Guest.migrate in virt/libvirt/guest.py in OpenStack Nova before 19.3.1, 20.x before 20.3.1, and 21.0.0. By performing a soft reboot of an instance that has previously undergone live migration, a user may gain access to destination host devices that share the same paths as host devices previously referenced by the virtual machine on the source host. This can include block devices that map to different Cinder volumes at the destination than at the source. Only deployments allowing host-based connections (for instance, root and ephemeral devices) are affected.","modified":"2026-02-04T03:27:33.485831Z","published":"2020-08-26T19:15:00Z","related":["USN-5866-1"],"upstream":["CVE-2020-17376"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-17376"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2020/08/25/4"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5866-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-17376"}],"affected":[{"package":{"name":"nova","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/nova@2:17.0.13-0ubuntu5.3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:17.0.13-0ubuntu5.3"}]}],"versions":["2:16.0.1-0ubuntu1","2:16.0.1-0ubuntu2","2:17.0.0~b1-0ubuntu1","2:17.0.0~b2-0ubuntu2","2:17.0.0~b3-0ubuntu3","2:17.0.0~b3-0ubuntu4","2:17.0.0~rc1-0ubuntu1","2:17.0.0~rc2-0ubuntu1","2:17.0.0~rc3-0ubuntu1","2:17.0.0-0ubuntu1","2:17.0.1-0ubuntu1","2:17.0.3-0ubuntu1","2:17.0.4-0ubuntu1","2:17.0.5-0ubuntu1","2:17.0.5-0ubuntu2","2:17.0.6-0ubuntu1","2:17.0.7-0ubuntu1","2:17.0.7-0ubuntu2","2:17.0.9-0ubuntu1","2:17.0.9-0ubuntu3","2:17.0.10-0ubuntu2","2:17.0.10-0ubuntu2.1","2:17.0.11-0ubuntu1","2:17.0.12-0ubuntu1","2:17.0.13-0ubuntu1","2:17.0.13-0ubuntu2","2:17.0.13-0ubuntu3","2:17.0.13-0ubuntu4","2:17.0.13-0ubuntu5","2:17.0.13-0ubuntu5.2"],"ecosystem_specific":{"binaries":[{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-ajax-console-proxy"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-api"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-api-metadata"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-api-os-compute"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-api-os-volume"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-cells"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-common"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-compute"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-compute-kvm"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-compute-libvirt"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-compute-lxc"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-compute-qemu"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-compute-vmware"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-compute-xen"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-conductor"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-console"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-consoleauth"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-network"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-novncproxy"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-placement-api"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-scheduler"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-serialproxy"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-spiceproxy"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-volume"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"nova-xvpvncproxy"},{"binary_version":"2:17.0.13-0ubuntu5.3","binary_name":"python-nova"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-17376.json"}},{"package":{"name":"nova","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/nova@2:21.2.4-0ubuntu2.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:21.2.4-0ubuntu2.1"}]}],"versions":["2:20.0.0-0ubuntu1","2:21.0.0~b1~git2019120415.45fb747c98-0ubuntu1","2:21.0.0~b2~git2020021008.1fcd74730d-0ubuntu2","2:21.0.0~b2~git2020021008.1fcd74730d-0ubuntu4","2:21.0.0~b2~git2020021008.1fcd74730d-0ubuntu5","2:21.0.0~b3~git2020041013.57ff308d6d-0ubuntu2","2:21.0.0-0ubuntu0.20.04.1","2:21.0.0-0ubuntu0.20.04.2","2:21.1.0-0ubuntu1","2:21.1.1-0ubuntu2","2:21.1.2-0ubuntu1","2:21.2.0-0ubuntu1","2:21.2.1-0ubuntu1","2:21.2.2-0ubuntu1","2:21.2.3-0ubuntu1","2:21.2.4-0ubuntu1","2:21.2.4-0ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-ajax-console-proxy"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-api"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-api-metadata"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-api-os-compute"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-api-os-volume"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-cells"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-common"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-compute"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-compute-kvm"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-compute-libvirt"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-compute-lxc"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-compute-qemu"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-compute-vmware"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-compute-xen"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-conductor"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-novncproxy"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-scheduler"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-serialproxy"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-spiceproxy"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"nova-volume"},{"binary_version":"2:21.2.4-0ubuntu2.1","binary_name":"python3-nova"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-17376.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L"},{"type":"Ubuntu","score":"low"}]}