Upstream information
Description
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting ofproto_rule_insert__ in ofproto/ofproto.c. During bundle commit, flows that are added in a bundle are applied to ofproto in order. If a flow cannot be added (e.g., the flow action is a go-to for a group id that does not exist), OvS tries to revert back all previous flows that were successfully applied from the same bundle. This is possible since OvS maintains list of old flows that were replaced by flows from the bundle. While reinserting old flows, OvS has an assertion failure due to a check on rule state != RULE_INITIALIZED. This would work for new flows, but for an old flow the rule state is RULE_REMOVED. The assertion failure causes an OvS crash.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
| National Vulnerability Database | |
|---|---|
| Base Score | 5 |
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| Access Vector | Network |
| Access Complexity | Low |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Partial |
| National Vulnerability Database | SUSE | |
|---|---|---|
| Base Score | 7.5 | 6.5 |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | 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 | None | Low |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | None | None |
| Integrity Impact | None | None |
| Availability Impact | High | High |
| CVSSv3 Version | 3 | 3 |
SUSE Security Advisories:
- SUSE-SU-2018:4128-1, published Fri Dec 14 13:09:05 MST 2018
- openSUSE-SU-2018:4148-1, published Fri Dec 8 15:48:41 2023
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 |
| 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Please note that this evaluation state might be work in progress, incomplete or outdated.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 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 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 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 Linux Enterprise Server for SAP Applications 15 | openvswitch | Not affected |
| 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 2018CVE page last modified: Wed May 1 01:51:13 2024