RHSA-2014:0820 - Security Advisory

Topic

An updated docker package that fixes one security issue is now available
for Red Hat Enterprise Linux 7 Extras.

The Red Hat Security Response Team has rated this update as having
Important security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from the
CVE link in the References section.

Description

Docker is a service providing container management on Linux.

It was found that the socket used to manage the Docker service was world
readable and writable. A local user could use this flaw to escalate their
privileges to root. (CVE-2014-3499)

Red Hat would like to thank Jon Stanley for reporting this issue.

All users of docker are advised to upgrade to this updated package, which
corrects this issue. After applying this update, the docker service must
be restarted for the update to take effect.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux Server from RHUI 7 x86_64

Fixes

• BZ - 1111687 - CVE-2014-3499 docker: systemd socket activation results in privilege escalation

CVEs

• CVE-2014-3499

References

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