RHSA-2019:0975: container-tools:rhel8 security and bug fix update (Important)

Description

The vulnerabilities in the following products could cause the system to become vulnerable to malicious security attack: runc

Analysis

The container-tools module contains tools for working with containers, notably podman, buildah, skopeo, and runc. Security Fix(es): * A flaw was found in the way runc handled system file descriptors when running containers. A malicious container could use this flaw to overwrite contents of the runc binary and consequently run arbitrary commands on the container host system. (CVE-2019-5736) 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): * [stream rhel8] rebase container-selinux to 2.94 (BZ#1693675) * [stream rhel8] unable to mount disk at `/var/lib/containers` via `systemd` unit when `container-selinux` policy installed (BZ#1695669) * [stream rhel8] don't allow a container to connect to random services (BZ#1695689)

Affected Applications

runc

CVE References

CVE-2019-5736

Other References

https://access.redhat.com/errata/RHSA-2019:0975