Bug 1267714 (CVE-2015-5293)

Summary: CVE-2015-5293 RHEV: When "boot protocol" is set to None on an interface, interface still gets IPv6 address
Product: [Other] Security Response Reporter: Kurt Seifried <kseifried>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: acathrow, alonbl, bazulay, bmcclain, danken, dblechte, djasa, ecohen, idith, iheim, lsurette, michal.skrivanek, ycui, yeylon
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-12-17 16:49:24 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: 1265991, 1267715    
Bug Blocks: 1266437    

Description Kurt Seifried 2015-09-30 18:40:01 UTC 
It is reported that when a bridge device is set up with "None" for the boot 
protocol on a network with working IPv6 stateless configuration the host will
receieve a valid SLAAC IPv6 address. This could result in a system being 
reachable via IPv6 when it is not intended to be.
Comment 2 Kurt Seifried 2015-09-30 18:48:40 UTC 
*** Bug 1265991 has been marked as a duplicate of this bug. ***
Comment 4 Kurt Seifried 2015-12-17 16:49:05 UTC 
Workaround:

Firewall IPv6 on hosts to prevent network availability.
Comment 5 Kurt Seifried 2015-12-17 16:49:24 UTC 
Statement:

This issue affects the versions of vdsm as shipped in Red Hat Enterprise Virtualization 3.x. Red Hat Product Security has rated this issue as having Moderate security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.