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RedHat: RHSA-2019:0975-01 Important: Container-Tools Security Threat

red hat
Calendar Grey May 7, 2019
Dist Redhat Esm H88
A significant patch issued for RHEL's container-tools package, targeting key vulnerabilities and resolving various glitches.
An update for the container-tools:rhel8 module is now available for Red Hat Enterprise Linux 8

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

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)

Topics%20covered

Topics Covered

security advisory bug fix important redhat system threat container-tools

References

https://access.redhat.com/security/cve/CVE-2019-5736 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: buildah-1.5-3.gite94b4f9.module+el8.0.0+2958+4e823551.src.rpm container-selinux-2.94-1.git1e99f1d.module+el8.0.0+2958+4e823551.src.rpm containernetworking-plugins-0.7.4-3.git9ebe139.module+el8.0.0+2958+4e823551.src.rpm fuse-overlayfs-0.3-2.module+el8.0.0+2958+4e823551.src.rpm oci-systemd-hook-0.1.15-2.git2d0b8a3.module+el8.0.0+2958+4e823551.src.rpm oci-umount-2.3.4-2.git87f9237.module+el8.0.0+2958+4e823551.src.rpm podman-1.0.0-2.git921f98f.module+el8.0.0+2958+4e823551.src.rpm runc-1.0.0-55.rc5.dev.git2abd837.module+el8.0.0+3049+59fd2bba.src.rpm skopeo-0.1.32-3.git1715c90.module+el8.0.0+2958+4e823551.src.rpm slirp4netns-0.1-2.dev.gitc4e1bc5.module+el8.0.0+2958+4e823551.src.rpm
aarch64: buildah-1.5-3.gite94b4f9.module+el8.0.0+2958+4e823551.aarch64.rpm buildah-debuginfo-1.5-3.gite94b4f9.module+el8.0.0+2958+4e823551.aarch64.rpm buildah-debugsource-1.5-3.gite94b4f9.module+el8.0.0+2958+4e823551.aarch64.rpm containernetworking-plugins-0.7.4-3.git9ebe139.module+el8.0.0+2958+4e823551.aarch64.rpm containernetworking-plugins-debuginfo-0.7.4-3.git9ebe139.module+el8.0.0+2958+4e823551.aarch64.rpm containernetworking-plugins-debugsource-0.7.4-3.git9ebe139.module+el8.0.0+2958+4e823551.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:0975-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:0975
Issue date: 2019-05-07

Topic

An update for the container-tools:rhel8 module is now available for Red HatEnterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory bug fix important redhat system threat container-tools

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

1664908 - CVE-2019-5736 runc: Execution of malicious containers allows for container escape and access to host filesystem

1693675 - [stream rhel8] rebase container-selinux to 2.94

1695669 - [stream rhel8] unable to mount disk at `/var/lib/containers` via `systemd` unit when `container-selinux` policy installed

1695689 - [stream rhel8] don't allow a container to connect to random services

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