Bug 1695883 (CVE-2019-10876)

Summary: CVE-2019-10876 openstack-neutron: DOS via broken port range merging in security group
Product: [Other] Security Response Reporter: Pedro Sampaio <psampaio>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: amuller, chrisw, dbecker, jjoyce, jschluet, kbasil, lhh, lpeer, mburns, msiddiqu, sandyada, sclewis, scohen, slinaber, srevivo
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: neutron 11.0.7, neutron 12.0.6, neutron 13.0.3 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-06-10 10:53:15 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1695450, 1695451, 1695884, 1695912    
Bug Blocks: 1695885    

Description Pedro Sampaio 2019-04-03 20:26:37 UTC 
A flaw was found in openstack-neutron. When merging port ranges, the code never assumed the conjunction ID might not be present in the set due to
already being removed. This can lead to server crash and denial of service.

Upstream patch:

https://review.openstack.org/#/c/640252/
https://review.openstack.org/#/c/648102/2
https://review.openstack.org/#/c/648004/2
https://review.openstack.org/#/c/648003/2
https://review.openstack.org/#/c/648002/2

References:

https://bugs.launchpad.net/ubuntu/+source/neutron/+bug/1813007
https://bugs.launchpad.net/ossa/+bug/1813007
https://review.openstack.org/#/q/topic:bug/1813007
Comment 1 Pedro Sampaio 2019-04-03 20:26:46 UTC 
Created openstack-neutron tracking bugs for this issue:

Affects: openstack-rdo [bug 1695884]
Comment 2 Joshua Padman 2019-04-03 21:25:52 UTC 
Introduced in the following upstream committ.
https://github.com/openstack/neutron/commit/237ec30ca94322716a1af5e59c0960f0eef24194
Comment 5 Joshua Padman 2019-04-15 23:07:54 UTC 
Statement:

The pre-requisites for this vulnerability are not in Red Hat OpenStack prior to version 11, hence these versions are not affected.
Comment 6 errata-xmlrpc 2019-04-30 17:23:34 UTC 
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 13.0 (Queens)

Via RHSA-2019:0935 https://access.redhat.com/errata/RHSA-2019:0935
Comment 7 errata-xmlrpc 2019-04-30 17:35:13 UTC 
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 14.0 (Rocky)

Via RHSA-2019:0879 https://access.redhat.com/errata/RHSA-2019:0879