Synopsis

Moderate: docker security and bug fix update

Type/Severity

Security Advisory: Moderate

Topic

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 Moderate. 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.

Description

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

Security Fix(es):

• It was found that Docker would launch containers under the specified UID instead of a username. An attacker able to launch a container could use this flaw to escalate their privileges to root within the launched container. (CVE-2016-3697)
  

This issue was discovered by Mrunal Patel (Red Hat).

Bug Fix(es):

• This update also provides various bug fixes and enhancements. Users are advised to upgrade to these updated packages.

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

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64

Fixes

• BZ - 1303123 - docker requires an updated selinux-policy-targeted for interfaces it uses to be mainstream
• BZ - 1329450 - CVE-2016-3697 docker: privilege escalation via confusion of usernames and UIDs
• BZ - 1330141 - openonload applications fail inside containers
• BZ - 1335951 - heavy logging leads to Docker daemon OOM-ing
• BZ - 1336857 - SELinux context not set properly when building vagrant box
• BZ - 1346185 - Installing Extras 7.2 on RHEL 7.3 nightly causes wrong SELinux domain for the docker daemon and containers
• BZ - 1357121 - [extras-rhel-7.3.0] Docker ps -a shows dead pods that can't be removed
• BZ - 1358819 - docker is prevented from running container by selinux
• BZ - 1362611 - Cannot start container. oci-register-machine failed, permission denied
• BZ - 1370935 - docker-selinux broken in 7.3
• BZ - 1374265 - [extras-rhel-7.3.0] docker-py 1.7.2 hangs when trying to access ctr stats against docker 1.10
• BZ - 1385641 - sssd process are running in docker_t context instead of spc_t context

CVEs

• CVE-2016-3697

References

• https://access.redhat.com/security/updates/classification/#moderate

Red Hat Enterprise Linux Server 7

SRPM
docker-1.10.3-57.el7.src.rpm	SHA-256: 2f9cd6a4ade3d22d791b0e30469bd771e49f855aa40ed6daf7ecb4cda3b8519b
x86_64
docker-1.10.3-57.el7.x86_64.rpm	SHA-256: 935e31afa22c6e56f7b5362ef297d514ce46965420f26317ed5a7ba168faeb33
docker-common-1.10.3-57.el7.x86_64.rpm	SHA-256: 87f40c1193e5d7bf3b9cb88d54a8a6ce83b3f3ad3a6ac9ee64a2a92126a3d97c
docker-logrotate-1.10.3-57.el7.x86_64.rpm	SHA-256: e2eeed54382a110e345c31d58e6d44cf51b28a9dc9b9379322c1f36c45516286
docker-lvm-plugin-1.10.3-57.el7.x86_64.rpm	SHA-256: a599c3521a3cfa78d592cc29c6ccd55d8803f0e4a63b0aee4f2810e1acc164b6
docker-novolume-plugin-1.10.3-57.el7.x86_64.rpm	SHA-256: 1211b423847f57c801c2c41131f6e4c20658b2c118ec1e3faaeb4543cb029d99
docker-rhel-push-plugin-1.10.3-57.el7.x86_64.rpm	SHA-256: 879977849bf5f3e3f91386b4239a1676b21118b40df192c0e8cf94fa2d61d43d
docker-selinux-1.10.3-57.el7.x86_64.rpm	SHA-256: 1ffd8448e9873ce01ffb63bc536f08c5936a486723a721cf1ce5770746f69144
docker-v1.10-migrator-1.10.3-57.el7.x86_64.rpm	SHA-256: 60d1a281a12501dbe60fb7c8dd5a37a877aa4c0360abe86330be6f55a299ebe8