DescriptionAn 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.
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
|National Vulnerability Database|
|National Vulnerability Database||SUSE|
- SUSE-SU-2018:4128-1, published Fri Dec 14 13:09:05 MST 2018
- openSUSE-SU-2018:4148-1, published Sun, 16 Dec 2018 00:11:00 +0100 (CET)
List of released packages
|Product(s)||Fixed package version(s)||References|
|SUSE Linux Enterprise Server 12 SP3|| ||Patchnames:
|SUSE Linux Enterprise Server for SAP Applications 12 SP3|| ||Patchnames:
|openSUSE Leap 42.3|| ||Patchnames:
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Please note that this evaluation state might be work in progress, incomplete or outdated.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.
|SUSE Linux Enterprise Module for Server Applications 15 GA||openvswitch||Not affected|
|SUSE Linux Enterprise Server 12 SP3||openvswitch||Released|