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

Synopsis:          Low: docker-distribution security, bug fix, and enhancement
 update
Advisory ID:       RHSA-2017:2603-01
Product:           Red Hat Enterprise Linux Extras
Advisory URL:      https://access.redhat.com/errata/RHSA-2017:2603
Issue date:        2017-09-05
CVE Names:         CVE-2017-11468 
=====================================================================

1. Summary:

An update for docker-distribution is now available for Red Hat Enterprise
Linux 7 Extras.

Red Hat Product Security has rated this update as having a security impact
of Low. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux 7 Extras - ppc64le, x86_64

3. Description:

The docker-distribution package provides the tool set to support the Docker
Registry version 2.

The following packages have been upgraded to a later upstream version:
docker-distribution (2.6.2). (BZ#1479494)

Security Fix(es):

* It was found that docker-distribution did not properly restrict memory
allocation size for a registry instance through the manifest endpoint. An
attacker could send a specially crafted request that would exhaust the
memory of the docker-distribution service. (CVE-2017-11468)

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

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

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

1474893 - CVE-2017-11468 docker-distribution: Does not properly restrict the
 amount of content accepted from a user
1479494 - [extras-rhel-7.4.1] docker-distribution rebase bug

6. Package List:

Red Hat Enterprise Linux 7 Extras:

Source:
docker-distribution-2.6.2-1.git48294d9.el7.src.rpm

ppc64le:
docker-distribution-2.6.2-1.git48294d9.el7.ppc64le.rpm

x86_64:
docker-distribution-2.6.2-1.git48294d9.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-2017-11468
https://access.redhat.com/security/updates/classification/#low

8. Contact:

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

Copyright 2017 Red Hat, Inc.
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