{"document":{"aggregate_severity":{"namespace":"https://www.suse.com/support/security/rating/","text":"moderate"},"category":"csaf_vex","csaf_version":"2.0","distribution":{"text":"Copyright 2024 SUSE LLC. All rights reserved.","tlp":{"label":"WHITE","url":"https://www.first.org/tlp/"}},"lang":"en","notes":[{"category":"summary","text":"SUSE CVE-2018-17204","title":"Title"},{"category":"description","text":"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.","title":"Description of the CVE"},{"category":"legal_disclaimer","text":"CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).","title":"Terms of use"}],"publisher":{"category":"vendor","contact_details":"https://www.suse.com/support/security/contact/","name":"SUSE Product Security Team","namespace":"https://www.suse.com/"},"references":[{"category":"external","summary":"CVE-2018-17204","url":"https://www.suse.com/security/cve/CVE-2018-17204"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1104467 for CVE-2018-17204","url":"https://bugzilla.suse.com/1104467"},{"category":"external","summary":"Advisory link for SUSE-SU-2018:4128-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2018-December/004965.html"},{"category":"external","summary":"Advisory link for openSUSE-SU-2018:4148-1","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/RWWVMXVHK4TM7P3FSDLTKB3QSJBMQARY/#RWWVMXVHK4TM7P3FSDLTKB3QSJBMQARY"}],"title":"SUSE CVE CVE-2018-17204","tracking":{"current_release_date":"2025-10-07T09:48:39Z","generator":{"date":"2023-02-15T04:23:38Z","engine":{"name":"cve-database.git:bin/generate-csaf-vex.pl","version":"1"}},"id":"CVE-2018-17204","initial_release_date":"2023-02-15T04:23:38Z","revision_history":[{"date":"2023-02-15T04:23:38Z","number":"2","summary":"Current version"},{"date":"2023-12-08T04:09:14Z","number":"3","summary":"Current version"},{"date":"2023-12-09T02:54:29Z","number":"4","summary":"Current version"},{"date":"2025-01-01T07:24:13Z","number":"5","summary":"Current version"},{"date":"2025-02-18T06:57:27Z","number":"6","summary":"Current version"},{"date":"2025-03-14T03:51:29Z","number":"7","summary":"Current version"},{"date":"2025-03-15T11:54:20Z","number":"8","summary":"Current version"},{"date":"2025-04-25T06:49:48Z","number":"9","summary":"Current version"},{"date":"2025-10-07T09:48:39Z","number":"10","summary":"Current version"}],"status":"interim","version":"10"}},"product_tree":{"branches":[{"branches":[{"branches":[{"category":"product_name","name":"SUSE Linux Enterprise High Performance Computing 15","product":{"name":"SUSE Linux Enterprise High Performance Computing 15","product_id":"SUSE Linux Enterprise High Performance Computing 15","product_identification_helper":{"cpe":"cpe:/o:suse:sle_hpc:15"}}},{"category":"product_name","name":"SUSE Linux Enterprise Module for Server Applications 15","product":{"name":"SUSE Linux Enterprise Module for Server Applications 15","product_id":"SUSE Linux Enterprise Module for Server Applications 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Page","text":"https://www.suse.com/security/cve/CVE-2018-17204"}],"notes":[{"category":"general","text":"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.","title":"CVE description"}],"product_status":{"known_not_affected":["SUSE Linux Enterprise High Performance Computing 15:libopenvswitch-2_11-0","SUSE Linux Enterprise High Performance Computing 15:libopenvswitch-2_8-0","SUSE Linux Enterprise High Performance Computing 15:openvswitch","SUSE Linux Enterprise High Performance Computing 15:openvswitch-devel","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","SUSE Linux Enterprise Server 15:libopenvswitch-2_11-0","SUSE Linux Enterprise Server 15:libopenvswitch-2_8-0","SUSE Linux Enterprise Server 15:openvswitch","SUSE Linux Enterprise Server 15:openvswitch-devel","SUSE Linux Enterprise Server for SAP Applications 15:libopenvswitch-2_11-0","SUSE Linux Enterprise Server for SAP Applications 15:libopenvswitch-2_8-0","SUSE Linux Enterprise Server for SAP Applications 15:openvswitch","SUSE Linux Enterprise Server for SAP Applications 15:openvswitch-devel"],"recommended":["SUSE Linux Enterprise Server 12 SP3-TERADATA:openvswitch-2.7.6-3.23.1","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"]},"references":[{"category":"external","summary":"CVE-2018-17204","url":"https://www.suse.com/security/cve/CVE-2018-17204"},{"category":"external","summary":"SUSE Security Ratings","url":"https://www.suse.com/support/security/rating/"},{"category":"external","summary":"SUSE Bug 1104467 for CVE-2018-17204","url":"https://bugzilla.suse.com/1104467"},{"category":"external","summary":"Advisory link for SUSE-SU-2018:4128-1","url":"https://lists.suse.com/pipermail/sle-security-updates/2018-December/004965.html"},{"category":"external","summary":"Advisory link for openSUSE-SU-2018:4148-1","url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/RWWVMXVHK4TM7P3FSDLTKB3QSJBMQARY/#RWWVMXVHK4TM7P3FSDLTKB3QSJBMQARY"}],"remediations":[{"category":"vendor_fix","details":"To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n","product_ids":["SUSE Linux Enterprise Server 12 SP3-TERADATA:openvswitch-2.7.6-3.23.1","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"]}],"scores":[{"cvss_v3":{"baseScore":6.5,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"products":["SUSE Linux Enterprise Server 12 SP3-TERADATA:openvswitch-2.7.6-3.23.1","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"]}],"threats":[{"category":"impact","date":"2018-08-28T13:16:04Z","details":"moderate"}],"title":"CVE-2018-17204"}]}