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CVE-2019-10876

Published: 5 April 2019

An issue was discovered in OpenStack Neutron 11.x before 11.0.7, 12.x before 12.0.6, and 13.x before 13.0.3. By creating two security groups with separate/overlapping port ranges, an authenticated user may prevent Neutron from being able to configure networks on any compute nodes where those security groups are present, because of an Open vSwitch (OVS) firewall KeyError. All Neutron deployments utilizing neutron-openvswitch-agent are affected.

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
neutron
Launchpad, Ubuntu, Debian
upstream
Released (2:13.0.2-15)
trusty Does not exist
(trusty was not-affected [code not present])
xenial Not vulnerable
(code not present)
bionic
Released (2:12.0.5-0ubuntu3)
cosmic
Released (2:13.0.2-0ubuntu3)
disco Not vulnerable
(2:14.0.0~b1~git2018120609.2e720b158b-0ubuntu2)
Patches:
upstream: https://review.openstack.org/648004 (queens, 12.0.x)
upstream: https://review.openstack.org/648003 (rocky, 13.0.x)

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N