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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: docker security update
Advisory ID:       RHSA-2015:0776-01
Product:           RHEL Extras
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2015-0776.html
Issue date:        2015-04-02
CVE Names:         CVE-2015-1843 
=====================================================================

1. Summary:

Updated docker packages that fix one security issue are now available for
Red Hat Enterprise Linux 7 Extras.

Red Hat Product Security has rated this update as having Moderate security
impact. Common Vulnerability Scoring System (CVSS) base scores, which give
detailed severity ratings, are available for each vulnerability from the
CVE links in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux 7 Extras - noarch, x86_64

3. Description:

Docker is a service providing container management on Linux.

It was found that the fix for the CVE-2014-5277 issue was incomplete: the
docker client could under certain circumstances erroneously fall back to
HTTP when an HTTPS connection to a registry failed. This could allow a
man-in-the-middle attacker to obtain authentication and image data from
traffic sent from a client to the registry. (CVE-2015-1843)

Red Hat would like to thank Eric Windisch of Docker Inc. for reporting
this issue.

All docker users are advised to upgrade to these updated packages, which
correct this issue.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1206443 - CVE-2015-1843 docker: regression of CVE-2014-5277

6. Package List:

Red Hat Enterprise Linux 7 Extras:

Source:
docker-1.5.0-28.el7.src.rpm

noarch:
python-websocket-client-0.14.1-65.el7.noarch.rpm

x86_64:
atomic-0-0.9.git4ff7dbd.el7.x86_64.rpm
docker-1.5.0-28.el7.x86_64.rpm
docker-logrotate-1.5.0-28.el7.x86_64.rpm
docker-python-1.0.0-22.el7.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2015-1843
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2015 Red Hat, Inc.
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