CVE-2018-17204
An issue was discovered in Open vSwitch (OvS), 2.4.x through 2.4.1, 2.5.x through 2.5.5, 2.6.x through 2.6.3, 2.7.x through 2.7.6, 2.8.x through 2.8.4, and2.9.x through 2.9.2, affecting the parse_group_prop_ntr_selection_method in lib/ofp-util.c. On controllers with the OpenFlow 1.5 decoder enabled, a specially crafted group update can cause an assertion failure, potentially leading to a Denial of Service condition.
Find out more about CVE-2018-17204 from the MITRE CVE dictionary dictionary and NIST NVD.
CVSS v3 metrics
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 2.7 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | High |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | None |
| Availability Impact | Low |
Affected Packages State
| Platform | Package | State |
|---|---|---|
| Red Hat Virtualization 4 | openvswitch | Under investigation |
| Red Hat OpenStack Platform 9.0 | openvswitch | Affected |
| Red Hat OpenStack Platform 8.0 (Liberty) | openvswitch | Affected |
| Red Hat OpenStack Platform 13.0 (Queens) | openvswitch | Affected |
| Red Hat OpenStack Platform 12.0 | openvswitch | Affected |
| Red Hat OpenStack Platform 10 | openvswitch | Affected |
| Red Hat OpenShift Enterprise 3.2 | openvswitch | Under investigation |
| Red Hat OpenShift Enterprise 3.10 | openvswitch-enterprise-openvswitch-docker | Under investigation |
| Red Hat OpenShift Enterprise 3.1 | openvswitch | Under investigation |
| Red Hat OpenShift Enterprise 3.0 | openvswitch | Under investigation |
| Red Hat OpenShift Container Platform 3.9 | openvswitch-ovn-kubernetes | Under investigation |
| Red Hat OpenShift Container Platform 3.4 | openvswitch | Under investigation |
| Red Hat OpenShift Container Platform 3.3 | openvswitch | Under investigation |
| Red Hat Enterprise Linux 7 | openvswitch | Under investigation |
| OpenStack 9.0 Director for RHEL 7 | openvswitch-base-docker | Affected |
| OpenStack 8.0 Director for RHEL 7 | openvswitch-base-docker | Affected |