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Red Hat Enterprise Linux 8 RHSA-2021-0531-01 Moderate: Environment Leak

red hat
Calendar Grey February 16, 2021
Scroller Redhat
Red Hat released a measured security alert concerning container-tools:rhel8, which addresses an issue with environmental variable exposure. For full information, continue reading.
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):
* podman: environment variables leak between containers when started via Varlink or Docker-compatible REST API (CVE-2020-14370)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat software update bug fix security fix moderate severity container-tools environment leak

References

https://access.redhat.com/security/cve/CVE-2020-14370 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/8.3_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: buildah-1.16.7-4.module+el8.3.1+9857+68fb1526.src.rpm cockpit-podman-27.1-3.module+el8.3.1+9857+68fb1526.src.rpm conmon-2.0.22-3.module+el8.3.1+9857+68fb1526.src.rpm container-selinux-2.155.0-1.module+el8.3.1+9857+68fb1526.src.rpm containernetworking-plugins-0.9.0-1.module+el8.3.1+9857+68fb1526.src.rpm criu-3.15-1.module+el8.3.1+9857+68fb1526.src.rpm crun-0.16-2.module+el8.3.1+9857+68fb1526.src.rpm fuse-overlayfs-1.3.0-2.module+el8.3.1+9857+68fb1526.src.rpm libslirp-4.3.1-1.module+el8.3.1+9803+64eb0fd6.src.rpm oci-seccomp-bpf-hook-1.2.0-1.module+el8.3.1+9857+68fb1526.src.rpm podman-2.2.1-7.module+el8.3.1+9857+68fb1526.src.rpm python-podman-api-1.2.0-0.2.gitd0a45fe.module+el8.3.1+9857+68fb1526.src.rpm runc-1.0.0-70.rc92.module+el8.3.1+9857+68fb1526.src.rpm skopeo-1.2.0-9.module+el8.3.1+9857+68fb1526.src.rpm slirp4netns-1.1.8-1.module+el8.3.1+9857+68fb1526.src.rpm toolbox-0.0.8-1.module+el8.3.1+9857+68fb1526.src.rpm udica-0.2.4-1.module+el8.3.1+9857+68fb1526.src.rpm
aarch64: buildah-1.16.7-4.module+el8.3.1+9857+68fb1526.aarch64.rpm buildah-debuginfo-1.16.7-4.module+el8.3.1+9857+68fb1526.aarch64.rpm buildah-debugsource-1.16.7-4.module+el8.3.1+9857+68fb1526.aarch64.rpm

Read the Full Advisory


Advisory ID: RHSA-2021:0531-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0531
Issue date: 2021-02-16

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 Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat software update bug fix security fix moderate severity container-tools environment leak

Relevant Releases Architectures

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

Bugs Fixed

1678546 - Podman fails to create containers on RHEL 8 if CGroups V2 is enabled.

1701359 - rpmdiff message: Detecting usr/bin/buildah with not-hardened warnings

1701361 - rpmdiff message: Detecting usr/bin/fuse-overlayfs with not-hardened warnings

1843168 - [RFE] podman volume should include the filter dangling=true

1846629 - [RFE] Enable "podman search" to use wildcard (star) for queries

1848150 - Improved error message when signatures cannot be stored

1873064 - Can not execute podman commands scheduled by cron

1873204 - podman run --log-driver journald didn't works as expected

1874268 - CVE-2020-14370 podman: environment variables leak between containers when started via Varlink or Docker-compatible REST API

1876576 - podman images can panic for incomplete images in the storage

1877865 - dnsname plugin missing from RHEL 8.2

1880987 - ubi8-init rootless fails on RHEL 8.2 with 'No such file or directory' and 'Permission denied'

1881218 - unable to run RHEL6 container in RHEL 8.3 (container-selinux not installed with podman)

1883945 - Cannot mount /proc/net in a container as it is a symlink to /proc/self/net and not assigned proc_t

1884668 - Fix parsing of the parameter to detect digests and use the appropriate @ separator.

1895105 - Podman events nonfunctional as rootless

1897012 - podman search doesn't give description of packages with --no-trunc option

1898911 - Empty cidfile after container creation

Read the Full Advisory

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