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CVE-2020-17376 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.3 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://launchpad.net/bugs/1890501	CVE	ExploitThird Party Advisory
https://security.openstack.org/ossa/OSSA-2020-006.html	CVE	PatchVendor Advisory
http://www.openwall.com/lists/oss-security/2020/08/25/4	CVE	Mailing ListPatchThird Party Advisory
https://launchpad.net/bugs/1890501	[email protected]	ExploitThird Party Advisory
https://security.openstack.org/ossa/OSSA-2020-006.html	[email protected]	PatchVendor Advisory
http://www.openwall.com/lists/oss-security/2020/08/25/4	[email protected]	Mailing ListPatchThird Party Advisory

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-611	Improper Restriction of XML External Entity Reference	[email protected]

Affected Products

Product	Versions
openstack nova	< 19.3.1 >= 20.0.0, < 20.3.1 21.0.0
CPE cpe:2.3:a:openstack:nova:::::::: cpe:2.3:a:openstack:nova:21.0.0:::::::* Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Sep 14, 2020	Reanalysis	[email protected]
Sep 1, 2020	Initial Analysis	[email protected]