An issue was discovered in Open vSwitch (OvS) 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, and 2.9.x through 2.9.2 where the decode_bundle function inside lib/ofp-actions.c is affected by a buffer over-read issue during BUNDLE action decoding. A specially crafted flow update applied using the bundling feature of Open vSwitch could potentially cause a crash leading to a denial of service.
Find out more about CVE-2018-17206 from the MITRE CVE dictionary dictionary and NIST NVD.
| CVSS3 Base Score | 4.9 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | High |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | None |
| Availability Impact | High |
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat OpenStack Platform 10 (openvswitch) | RHSA-2019:0053 | 2019-01-16 |
| Red Hat OpenStack Platform 13.0 (Queens) (openvswitch) | RHSA-2019:0081 | 2019-01-16 |
| Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts | RHSA-2018:3500 | 2018-11-05 |
| Channel to provide early releases to layered products (openvswitch) | RHSA-2018:3500 | 2018-11-05 |
| Red Hat Virtualization 4 | RHSA-2018:3500 | 2018-11-05 |
| Platform | Package | State |
|---|---|---|
| Red Hat Virtualization 4 | rhvm-appliance | Affected |
| Red Hat Virtualization 4 | redhat-virtualization-host | Affected |
| Red Hat OpenStack Platform 9.0 | openvswitch | Affected |
| Red Hat OpenStack Platform 8.0 (Liberty) | openvswitch | Affected |
| Red Hat OpenStack Platform 14 | openvswitch | Not affected |
| Red Hat OpenStack Platform 12.0 | openvswitch | Affected |
| Red Hat OpenShift Enterprise 3.2 | node | Not affected |
| Red Hat OpenShift Enterprise 3.1 | node | Not affected |
| Red Hat OpenShift Enterprise 3.0 | openvswitch | Not affected |
| Red Hat OpenShift Container Platform 3.4 | node | Not affected |
| Red Hat OpenShift Container Platform 3.3 | node | Not affected |
| OpenStack 9.0 Director for RHEL 7 | openvswitch-base-docker | Affected |
| OpenStack 8.0 Director for RHEL 7 | openvswitch-base-docker | Affected |
Vulmon