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CentOS Stream 8 CESR-2022:4980-01 Container Low Vulnerability Patch

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Calendar Grey November 3, 2016
Scroller Redhat
A new patch has been rolled out for Docker on Red Hat Enterprise Linux, focusing on fixing vulnerabilities associated with unauthorized access along with various improvements.
An update for docker is now available for Red Hat Enterprise Linux 7 Extras

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

Summary

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.

Topics%20covered

Topics Covered

security advisory moderate privilege escalation bug fix Red Hat Enterprise Linux container security docker

References

https://access.redhat.com/security/cve/CVE-2016-3697 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux 7 Extras:
Source: docker-1.10.3-57.el7.src.rpm
x86_64: docker-1.10.3-57.el7.x86_64.rpm docker-common-1.10.3-57.el7.x86_64.rpm docker-logrotate-1.10.3-57.el7.x86_64.rpm docker-lvm-plugin-1.10.3-57.el7.x86_64.rpm docker-novolume-plugin-1.10.3-57.el7.x86_64.rpm docker-rhel-push-plugin-1.10.3-57.el7.x86_64.rpm docker-selinux-1.10.3-57.el7.x86_64.rpm docker-v1.10-migrator-1.10.3-57.el7.x86_64.rpm
Red Hat Enterprise Linux 7 Extras:
Source: docker-1.10.3-55.el7.src.rpm
x86_64: docker-1.10.3-55.el7.x86_64.rpm docker-common-1.10.3-55.el7.x86_64.rpm docker-logrotate-1.10.3-55.el7.x86_64.rpm docker-lvm-plugin-1.10.3-55.el7.x86_64.rpm docker-novolume-plugin-1.10.3-55.el7.x86_64.rpm docker-rhel-push-plugin-1.10.3-55.el7.x86_64.rpm docker-selinux-1.10.3-55.el7.x86_64.rpm docker-v1.10-migrator-1.10.3-55.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


Advisory ID: RHSA-2016:2634-01
Product: Red Hat Enterprise Linux Extras
Advisory URL: https://access.redhat.com/errata/RHSA-2016:2634.html
Issue date: 2016-11-03

Topic

An update for docker is now available for Red Hat Enterprise Linux 7Extras.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate privilege escalation bug fix Red Hat Enterprise Linux container security docker

Relevant Releases Architectures

Red Hat Enterprise Linux 7 Extras - x86_64

Bugs Fixed

1303123 - docker requires an updated selinux-policy-targeted for interfaces it uses to be mainstream

1329450 - CVE-2016-3697 docker: privilege escalation via confusion of usernames and UIDs

1330141 - openonload applications fail inside containers1335951 - heavy logging leads to Docker daemon OOM-ing

1336857 - SELinux context not set properly when building vagrant box

1346185 - Installing Extras 7.2 on RHEL 7.3 nightly causes wrong SELinux domain for the docker daemon and containers1357121 - [extras-rhel-7.3.0] Docker ps -a shows dead pods that can't be removed

1358819 - docker is prevented from running container by selinux

1362611 - Cannot start container. oci-register-machine failed, permission denied

1370935 - docker-selinux broken in 7.3

1374265 - [extras-rhel-7.3.0] docker-py 1.7.2 hangs when trying to access ctr stats against docker 1.10

1385641 - sssd process are running in docker_t context instead of spc_t context

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