CVE-2020-17376

8.3HIGH

Key Information

Vendor
Openstack
Status
Nova
Vendor
CVE Published:
26 August 2020

Summary

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.

References

https://launchpad.net/bugs/1890501
x_refsource_MISC
https://security.openstack.org/ossa/OSSA-2020-006.html
x_refsource_CONFIRM
http://www.openwall.com/lists/oss-security/2020/08/25/4
x_refsource_MISC

CVSS V3.1

Score:
8.3
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database
.