CVE-2018-17204
Fixed in a distro release EPSS 2%
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting parse_group_prop_ntr_selection_method in lib/ofp-util.c. When decoding a group mod, it validates the group type and command after the whole group mod has been decoded. The OF1.5 decoder, however, tries to use the type and command earlier, when it might still be invalid. This causes an assertion failure (via OVS_NOT_REACHED). ovs-vswitchd does not enable support for OpenFlow 1.5 by default.
Products: openvswitch, redhat openstack, canonical ubuntu_linux, debian_linux
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | openvswitch | 2.10.0+2018.08.28+git.8ca7c82b7d+ds1-1 |
| Debian 13 | openvswitch | 2.10.0+2018.08.28+git.8ca7c82b7d+ds1-1 |
| Debian 14 | openvswitch | 2.10.0+2018.08.28+git.8ca7c82b7d+ds1-1 |
| Debian 9 | openvswitch | 2.6.10-0+deb9u1 |
| Red Hat Enterprise Linux 7 | openvswitch | 0:2.9.0-70.el7fdp.1 |
| Red Hat Enterprise Linux 7 | openvswitch-debuginfo | 0:2.9.0-70.el7fdp.1 |
| Red Hat Enterprise Linux 7 | openvswitch-devel | 0:2.9.0-70.el7fdp.1 |
| Red Hat Enterprise Linux 7 | openvswitch-ovn-central | 0:2.9.0-70.el7fdp.1 |
| Red Hat Enterprise Linux 7 | openvswitch-ovn-common | 0:2.9.0-70.el7fdp.1 |
| Red Hat Enterprise Linux 7 | openvswitch-ovn-host | 0:2.9.0-70.el7fdp.1 |
| Red Hat Enterprise Linux 7 | openvswitch-ovn-vtep | 0:2.9.0-70.el7fdp.1 |
| Red Hat Enterprise Linux 7 | openvswitch-test | 0:2.9.0-70.el7fdp.1 |
| Red Hat Enterprise Linux 7 | python-openvswitch | 0:2.9.0-70.el7fdp.1 |
| Red Hat Enterprise Linux 7 | redhat-release-virtualization-host | 0:4.2-7.5.el7 |
| Red Hat Enterprise Linux 7 | redhat-virtualization-host | 0:4.2-20181121.0.el7_6 |
| Red Hat Enterprise Linux 7 | redhat-virtualization-host-image-update | 0:4.2-20181121.0.el7_6 |
| Red Hat Enterprise Linux 7 | redhat-virtualization-host-image-update-placeholder | 0:4.2-7.5.el7 |
| Red Hat openstack 10 | openvswitch | 0:2.9.0-83.el7fdp.1 |
| Red Hat openstack 10 | openvswitch-debuginfo | 0:2.9.0-83.el7fdp.1 |
| Red Hat openstack 10 | openvswitch-devel | 0:2.9.0-83.el7fdp.1 |
| Red Hat openstack 10 | openvswitch-ovn-central | 0:2.9.0-83.el7fdp.1 |
| Red Hat openstack 10 | openvswitch-ovn-common | 0:2.9.0-83.el7fdp.1 |
| Red Hat openstack 10 | openvswitch-ovn-host | 0:2.9.0-83.el7fdp.1 |
| Red Hat openstack 10 | openvswitch-ovn-vtep | 0:2.9.0-83.el7fdp.1 |
| Red Hat openstack 10 | openvswitch-test | 0:2.9.0-83.el7fdp.1 |
| Red Hat openstack 10 | python-openvswitch | 0:2.9.0-83.el7fdp.1 |
| Red Hat openstack 13 | openvswitch | 0:2.9.0-83.el7fdp.1 |
| Red Hat openstack 13 | openvswitch-debuginfo | 0:2.9.0-83.el7fdp.1 |
| Red Hat openstack 13 | openvswitch-ovn-central | 0:2.9.0-83.el7fdp.1 |
| Red Hat openstack 13 | openvswitch-ovn-common | 0:2.9.0-83.el7fdp.1 |
| Red Hat openstack 13 | openvswitch-ovn-host | 0:2.9.0-83.el7fdp.1 |
| Red Hat openstack 13 | openvswitch-ovn-vtep | 0:2.9.0-83.el7fdp.1 |
| Red Hat openstack 13 | openvswitch-test | 0:2.9.0-83.el7fdp.1 |
| Red Hat openstack 13 | python-openvswitch | 0:2.9.0-83.el7fdp.1 |
| SUSE Linux Enterprise Server 12 SP3 | openvswitch | 2.7.6-3.23.1 |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | openvswitch | 2.7.6-3.23.1 |
| Ubuntu 16.04 LTS | openvswitch | 2.5.5-0ubuntu0.16.04.2 |
| Ubuntu 18.04 LTS | openvswitch | 2.9.2-0ubuntu0.18.04.3 |