ESB-2019.0427 - [Linux][RedHat] docker: Root compromise - Existing account 2019-02-12

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0427
                     Important: docker security update
                             12 February 2019

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           docker
Publisher:         Red Hat
Operating System:  Linux variants
                   Red Hat Enterprise Linux WS/Desktop 7
                   Red Hat Enterprise Linux Server 7
Impact/Access:     Root Compromise -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-5736  

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2019:0304

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Red Hat. It is recommended that administrators
         running docker check for an updated version of the software for 
         their operating system.

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

Synopsis:          Important: docker security update
Advisory ID:       RHSA-2019:0304-01
Product:           Red Hat Enterprise Linux Extras
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:0304
Issue date:        2019-02-11
CVE Names:         CVE-2019-5736 
=====================================================================

1. Summary:

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

Red Hat Product Security has rated this update as having a security impact
of Important. 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 - aarch64, ppc64le, s390x, x86_64

3. Description:

Docker is an open-source engine that automates the deployment of any
application as a lightweight, portable, self-sufficient container that runs
virtually anywhere.

Security Fix(es):

* A flaw was found in the way runc handled system file descriptors when
running containers. A malicious container could use this flaw to overwrite
contents of the runc binary and consequently run arbitrary commands on the
container host system. (CVE-2019-5736)

Additional details about this flaw, including mitigation information, can
be found in the vulnerability article linked from the Reference section.

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

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/):

1664908 - CVE-2019-5736 runc: Execution of malicious containers allows for container escape and access to host filesystem

6. Package List:

Red Hat Enterprise Linux 7 Extras:

Source:
docker-1.13.1-91.git07f3374.el7.src.rpm

aarch64:
docker-1.13.1-91.git07f3374.el7.aarch64.rpm
docker-client-1.13.1-91.git07f3374.el7.aarch64.rpm
docker-common-1.13.1-91.git07f3374.el7.aarch64.rpm
docker-debuginfo-1.13.1-91.git07f3374.el7.aarch64.rpm
docker-logrotate-1.13.1-91.git07f3374.el7.aarch64.rpm
docker-lvm-plugin-1.13.1-91.git07f3374.el7.aarch64.rpm
docker-novolume-plugin-1.13.1-91.git07f3374.el7.aarch64.rpm
docker-rhel-push-plugin-1.13.1-91.git07f3374.el7.aarch64.rpm
docker-v1.10-migrator-1.13.1-91.git07f3374.el7.aarch64.rpm

ppc64le:
docker-1.13.1-91.git07f3374.el7.ppc64le.rpm
docker-client-1.13.1-91.git07f3374.el7.ppc64le.rpm
docker-common-1.13.1-91.git07f3374.el7.ppc64le.rpm
docker-debuginfo-1.13.1-91.git07f3374.el7.ppc64le.rpm
docker-logrotate-1.13.1-91.git07f3374.el7.ppc64le.rpm
docker-lvm-plugin-1.13.1-91.git07f3374.el7.ppc64le.rpm
docker-novolume-plugin-1.13.1-91.git07f3374.el7.ppc64le.rpm
docker-rhel-push-plugin-1.13.1-91.git07f3374.el7.ppc64le.rpm
docker-v1.10-migrator-1.13.1-91.git07f3374.el7.ppc64le.rpm

s390x:
docker-1.13.1-91.git07f3374.el7.s390x.rpm
docker-client-1.13.1-91.git07f3374.el7.s390x.rpm
docker-common-1.13.1-91.git07f3374.el7.s390x.rpm
docker-debuginfo-1.13.1-91.git07f3374.el7.s390x.rpm
docker-logrotate-1.13.1-91.git07f3374.el7.s390x.rpm
docker-lvm-plugin-1.13.1-91.git07f3374.el7.s390x.rpm
docker-novolume-plugin-1.13.1-91.git07f3374.el7.s390x.rpm
docker-rhel-push-plugin-1.13.1-91.git07f3374.el7.s390x.rpm
docker-v1.10-migrator-1.13.1-91.git07f3374.el7.s390x.rpm

x86_64:
docker-1.13.1-91.git07f3374.el7.x86_64.rpm
docker-client-1.13.1-91.git07f3374.el7.x86_64.rpm
docker-common-1.13.1-91.git07f3374.el7.x86_64.rpm
docker-debuginfo-1.13.1-91.git07f3374.el7.x86_64.rpm
docker-logrotate-1.13.1-91.git07f3374.el7.x86_64.rpm
docker-lvm-plugin-1.13.1-91.git07f3374.el7.x86_64.rpm
docker-novolume-plugin-1.13.1-91.git07f3374.el7.x86_64.rpm
docker-rhel-push-plugin-1.13.1-91.git07f3374.el7.x86_64.rpm
docker-v1.10-migrator-1.13.1-91.git07f3374.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-2019-5736
https://access.redhat.com/security/vulnerabilities/runcescape
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2019 Red Hat, Inc.

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