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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2018-09-19T16:00:00

Updated: 2024-08-05T10:47:03.764Z

Reserved: 2018-09-19T00:00:00

Link: CVE-2018-17204

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2018-09-19T16:29:00.897

Modified: 2021-08-04T17:14:46.777

Link: CVE-2018-17204

cve-icon Redhat

Severity : Moderate

Publid Date: 2018-09-25T00:00:00Z

Links: CVE-2018-17204 - Bugzilla