Upstream information

CVE-2018-17204 at MITRE

Description

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 4
Vector AV:N/AC:L/Au:S/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication Single
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 4.3 6.5
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required Low Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact Low High
CVSSv3 Version 3.1 3
SUSE Bugzilla entry: 1104467 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Server 12 SP3
SUSE Linux Enterprise Server for SAP Applications 12 SP3
  • openvswitch >= 2.7.6-3.23.1
Patchnames:
SUSE-SLE-SERVER-12-SP3-2018-2942


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 openvswitch Not affected
SUSE Linux Enterprise High Performance Computing 15-ESPOS openvswitch Not affected
SUSE Linux Enterprise High Performance Computing 15-LTSS openvswitch Not affected
SUSE Linux Enterprise Server for SAP Applications 15 openvswitch Not affected
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 openvswitch Released
SUSE Enterprise Storage 5 openvswitch Released
SUSE Linux Enterprise Module for Server Applications 15 openvswitch Not affected
SUSE Linux Enterprise Server 12 SP3 openvswitch Released
SUSE Linux Enterprise Server 12 SP3-BCL openvswitch Released
SUSE Linux Enterprise Server 12 SP3-ESPOS openvswitch Released
SUSE Linux Enterprise Server 12 SP3-LTSS openvswitch Released
SUSE Linux Enterprise Server 15 openvswitch Not affected
SUSE Linux Enterprise Server 15-LTSS openvswitch Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 openvswitch Released
SUSE OpenStack Cloud 8 openvswitch Released
SUSE OpenStack Cloud Crowbar 8 openvswitch Released


SUSE Timeline for this CVE

CVE page created: Tue Aug 28 15:16:04 2018
CVE page last modified: Fri Dec 8 17:18:32 2023