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

Synopsis:          Important: docker security update
Advisory ID:       RHSA-2021:2144-01
Product:           Red Hat Enterprise Linux Extras
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:2144
Issue date:        2021-05-31
CVE Names:         CVE-2021-30465 
=====================================================================

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 - 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):

* runc: vulnerable to symlink exchange attack (CVE-2021-30465)

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/):

1954736 - CVE-2021-30465 runc: vulnerable to symlink exchange attack

6. Package List:

Red Hat Enterprise Linux 7 Extras:

Source:
docker-1.13.1-206.git7d71120.el7_9.src.rpm

ppc64le:
docker-1.13.1-206.git7d71120.el7_9.ppc64le.rpm
docker-client-1.13.1-206.git7d71120.el7_9.ppc64le.rpm
docker-common-1.13.1-206.git7d71120.el7_9.ppc64le.rpm
docker-debuginfo-1.13.1-206.git7d71120.el7_9.ppc64le.rpm
docker-logrotate-1.13.1-206.git7d71120.el7_9.ppc64le.rpm
docker-lvm-plugin-1.13.1-206.git7d71120.el7_9.ppc64le.rpm
docker-novolume-plugin-1.13.1-206.git7d71120.el7_9.ppc64le.rpm
docker-rhel-push-plugin-1.13.1-206.git7d71120.el7_9.ppc64le.rpm
docker-v1.10-migrator-1.13.1-206.git7d71120.el7_9.ppc64le.rpm

s390x:
docker-1.13.1-206.git7d71120.el7_9.s390x.rpm
docker-client-1.13.1-206.git7d71120.el7_9.s390x.rpm
docker-common-1.13.1-206.git7d71120.el7_9.s390x.rpm
docker-debuginfo-1.13.1-206.git7d71120.el7_9.s390x.rpm
docker-logrotate-1.13.1-206.git7d71120.el7_9.s390x.rpm
docker-lvm-plugin-1.13.1-206.git7d71120.el7_9.s390x.rpm
docker-novolume-plugin-1.13.1-206.git7d71120.el7_9.s390x.rpm
docker-rhel-push-plugin-1.13.1-206.git7d71120.el7_9.s390x.rpm
docker-v1.10-migrator-1.13.1-206.git7d71120.el7_9.s390x.rpm

x86_64:
docker-1.13.1-206.git7d71120.el7_9.x86_64.rpm
docker-client-1.13.1-206.git7d71120.el7_9.x86_64.rpm
docker-common-1.13.1-206.git7d71120.el7_9.x86_64.rpm
docker-debuginfo-1.13.1-206.git7d71120.el7_9.x86_64.rpm
docker-logrotate-1.13.1-206.git7d71120.el7_9.x86_64.rpm
docker-lvm-plugin-1.13.1-206.git7d71120.el7_9.x86_64.rpm
docker-novolume-plugin-1.13.1-206.git7d71120.el7_9.x86_64.rpm
docker-rhel-push-plugin-1.13.1-206.git7d71120.el7_9.x86_64.rpm
docker-v1.10-migrator-1.13.1-206.git7d71120.el7_9.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-2021-30465
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/RHSB-2021-004

8. Contact:

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

Copyright 2021 Red Hat, Inc.
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