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CVE-2019-9735

Published: 12 March 2019

An issue was discovered in the iptables firewall module in OpenStack Neutron before 10.0.8, 11.x before 11.0.7, 12.x before 12.0.6, and 13.x before 13.0.3. By setting a destination port in a security group rule along with a protocol that doesn't support that option (for example, VRRP), an authenticated user may block further application of security group rules for instances from any project/tenant on the compute hosts to which it's applied. (Only deployments using the iptables security group driver are affected.)

Priority

Medium

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
neutron
Launchpad, Ubuntu, Debian
bionic
Released (2:12.0.6-0ubuntu1)
cosmic
Released (2:13.0.2-0ubuntu3.4)
disco Not vulnerable
(2:14.0.0~b1~git2018120609.2e720b158b-0ubuntu2)
trusty Does not exist
(trusty was needs-triage)
upstream
Released (2:13.0.2-13)
xenial
Released (2:8.4.0-0ubuntu7.4)
Patches:
upstream: https://review.openstack.org/640685 (rocky, 13.0.x)
upstream: https://review.openstack.org/640702 (queens, 12.0.x)
upstream: https://review.openstack.org/640790 (pike, 11.0.x)
upstream: https://review.openstack.org/640791 (ocata, 10.0.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 None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H