RHSA-2019:0487 - Security Advisory

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 Low. 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 runs virtually anywhere.

Security Fix(es):

• docker: Memory exhaustion via large integer used with --cpuset-mems or --cpuset-cpus (CVE-2018-20699)

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.

Bug Fix(es):

• docker runc 'panic: runtime error: invalid memory address or nil pointer dereference' (BZ#1556901)
• temp files in /var/lib/docker persist (BZ#1645591)
• Docker needs to support PIDs Limit for all containers created. (BZ#1660876)
• dockerd may leak memory resources if uncompressing a layer fails (BZ#1661443)
• Docker may not properly close hijacked streams (BZ#1668042)
• Director deployed OCP 3.11 deployment fails with openshift-ansible getting stuck when restarting docker service on master nodes (BZ#1671861)
• Docker service hang (BZ#1678096)

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
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le
• Red Hat Enterprise Linux for ARM 64 7 aarch64
• Red Hat Enterprise Linux for Power 9 7 ppc64le
• Red Hat Enterprise Linux for IBM System z (Structure A) 7 s390x

Fixes

• BZ - 1645591 - temp files in /var/lib/docker persist
• BZ - 1660876 - Docker needs to support PIDs Limit for all containers created.
• BZ - 1661443 - dockerd may leak memory resources if uncompressing a layer fails
• BZ - 1666565 - CVE-2018-20699 docker: Memory exhaustion via large integer used with --cpuset-mems or --cpuset-cpus
• BZ - 1668042 - Docker may not properly close hijacked streams
• BZ - 1671861 - Director deployed OCP 3.11 deployment fails with openshift-ansible getting stuck when restarting docker service on master nodes
• BZ - 1678096 - Docker service hang

CVEs

• CVE-2018-20699

References

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