Bug 1219065 (CVE-2015-3631) - CVE-2015-3631 docker: volume mounts allow LSM profile escalation
Summary: CVE-2015-3631 docker: volume mounts allow LSM profile escalation
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2015-3631
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: 1219713 1219714 1219715 1219716
Blocks: 1219067
TreeView+ depends on / blocked
 
Reported: 2015-05-06 14:05 UTC by Martin Prpič
Modified: 2023-05-12 08:28 UTC (History)
14 users (show)

Fixed In Version: docker 1.6.1
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-10-21 00:44:53 UTC
Embargoed:

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Description Martin Prpič 2015-05-06 14:05:08 UTC 
The following flaw was reported in Docker:

By allowing volumes to override files of /proc within a mount namespace, a user could specify arbitrary policies for Linux Security Modules, including setting an unconfined policy underneath AppArmor, or a docker_t policy for processes managed by SELinux. In all versions of Docker up until 1.6.1, it is possible for malicious images to configure volume mounts such that files of proc may be overridden.

Docker Engine 1.6.1 address this vulnerability.

Acknowledgements:

Red Hat would like to thank Eric Windisch of the Docker project for reporting this issue.
Comment 1 Trevor Jay 2015-05-08 01:33:42 UTC 
This issue is exploitable by malicious Docker images. Red Hat supports images from it's own registry, ISV images certified by the Red Hat certification program, and images using qualified customer content.
Comment 3 Trevor Jay 2015-05-08 01:50:13 UTC 
Created docker-io tracking bugs for this issue:

Affects: fedora-all [bug 1219715]
Affects: epel-6 [bug 1219716]
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