CVE-2018-17204 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2018-17204 Interim 1 22 2025-02-17T02:36:56Z current 2021-05-30T14:17:12Z 2025-02-17T02:36:56Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2018-17204 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. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://lists.suse.com/pipermail/sle-security-updates/2018-December/004965.html E-Mail link for SUSE-SU-2018:4128-1 https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/RWWVMXVHK4TM7P3FSDLTKB3QSJBMQARY/#RWWVMXVHK4TM7P3FSDLTKB3QSJBMQARY E-Mail link for openSUSE-SU-2018:4148-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings SUSE Linux Enterprise Module for Server Applications 15 SUSE Linux Enterprise Server 12 SP3 SUSE Linux Enterprise Server 12 SP3-TERADATA SUSE Linux Enterprise Module for Server Applications 15 SUSE Linux Enterprise Server for SAP Applications 12 SP3 SUSE Linux Enterprise Module for Server Applications 15 libopenvswitch-2_11-0 libopenvswitch-2_8-0 openvswitch openvswitch-2.7.6-3.23.1 openvswitch-devel openvswitch-2.7.6-3.23.1 as a component of SUSE Linux Enterprise Server 12 SP3 openvswitch-2.7.6-3.23.1 as a component of SUSE Linux Enterprise Server 12 SP3-TERADATA openvswitch-2.7.6-3.23.1 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP3 libopenvswitch-2_11-0 as a component of SUSE Linux Enterprise Module for Server Applications 15 libopenvswitch-2_8-0 as a component of SUSE Linux Enterprise Module for Server Applications 15 openvswitch as a component of SUSE Linux Enterprise Module for Server Applications 15 openvswitch-devel as a component of SUSE Linux Enterprise Module for Server Applications 15 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. CVE-2018-17204 SUSE Linux Enterprise Server 12 SP3:openvswitch-2.7.6-3.23.1 SUSE Linux Enterprise Server 12 SP3-TERADATA:openvswitch-2.7.6-3.23.1 SUSE Linux Enterprise Server for SAP Applications 12 SP3:openvswitch-2.7.6-3.23.1 SUSE Linux Enterprise Module for Server Applications 15:libopenvswitch-2_11-0 SUSE Linux Enterprise Module for Server Applications 15:libopenvswitch-2_8-0 SUSE Linux Enterprise Module for Server Applications 15:openvswitch SUSE Linux Enterprise Module for Server Applications 15:openvswitch-devel moderate 4 AV:N/AC:L/Au:S/C:N/I:N/A:P 6.5 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H