Bug 1789640 (CVE-2020-1690) - CVE-2020-1690 openstack-selinux: policy flaw allows dbus messaging
Summary: CVE-2020-1690 openstack-selinux: policy flaw allows dbus messaging
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-1690
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1790116 1790117 1803657 1877863 1877864
Blocks: 1788675
TreeView+ depends on / blocked
 
Reported: 2020-01-10 00:22 UTC by Summer Long
Modified: 2021-05-31 03:47 UTC (History)
16 users (show)

Fixed In Version: openstack-selinux 0.8.24
Clone Of:
Environment:
Last Closed: 2020-10-28 20:21:20 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:4381 0 None None None 2020-10-28 15:46:30 UTC

Description Summer Long 2020-01-10 00:22:29 UTC 
As of 15, openstack-selinux prevents a non-root user in a container from privilege escalation. In 13 and before, openstack-selinux didn't have this functionality (that is, selinux separation wasn't possible).
Updates to the policy in [1] broke 15's functionality.  A non-root user in one or more RHOSP containers can send messages to the dbus. With access to the dbus, services could be started or stopped, therefore a DoS is possible.
Comment 3 Summer Long 2020-01-10 00:28:41 UTC 
For Comment #0: [1] https://bugzilla.redhat.com/show_bug.cgi?id=1738134
Matching BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1788561
Comment 6 Summer Long 2020-01-11 22:43:24 UTC 
Acknowledgments:

Name: Cedric Jeanneret (Red Hat)
Comment 17 Summer Long 2020-02-17 07:22:40 UTC 
Created openstack-selinux tracking bugs for this issue:

Affects: openstack-rdo [bug 1803657]
Comment 18 Summer Long 2020-02-17 23:55:59 UTC 
Mitigation:

There is no known mitigation for this issue, the flaw can only be resolved by applying updates.
Comment 25 errata-xmlrpc 2020-10-28 15:46:28 UTC 
This issue has been addressed in the following products:

  Red Hat OpenStack Platform 16.1

Via RHSA-2020:4381 https://access.redhat.com/errata/RHSA-2020:4381
Comment 26 Product Security DevOps Team 2020-10-28 20:21:20 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-1690
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