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Red Hat Enterprise Linux 8 RHSA-2021:2291-01 Critical: runc Symlink Attack

red hat
Calendar Grey June 8, 2021
Dist Redhat Esm H88
Canonical has released a significant patch for snapd:3.0 that mitigates a serious symlink vulnerability found in Ubuntu 20.04.
An update for the container-tools:2.0 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):
* runc: vulnerable to symlink exchange attack (CVE-2021-30465)
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.

Topics%20covered

Topics Covered

security advisory Red Hat critical symlink attack security impact container-tools

References

https://access.redhat.com/security/cve/CVE-2021-30465 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/RHSB-2021-004

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: buildah-1.11.6-8.module+el8.4.0+10193+e90fd8eb.src.rpm cockpit-podman-11-1.module+el8.4.0+10193+e90fd8eb.src.rpm conmon-2.0.15-1.module+el8.4.0+10193+e90fd8eb.src.rpm container-selinux-2.130.0-1.module+el8.4.0+10193+e90fd8eb.src.rpm containernetworking-plugins-0.8.3-4.module+el8.4.0+10193+e90fd8eb.src.rpm criu-3.12-9.module+el8.4.0+10193+e90fd8eb.src.rpm fuse-overlayfs-0.7.8-1.module+el8.4.0+10193+e90fd8eb.src.rpm podman-1.6.4-26.module+el8.4.0+10193+e90fd8eb.src.rpm python-podman-api-1.2.0-0.2.gitd0a45fe.module+el8.4.0+10193+e90fd8eb.src.rpm runc-1.0.0-65.rc10.module+el8.4.0+11031+7edfb656.src.rpm skopeo-0.1.41-4.module+el8.4.0+10193+e90fd8eb.src.rpm slirp4netns-0.4.2-3.git21fdece.module+el8.4.0+10193+e90fd8eb.src.rpm toolbox-0.0.7-1.module+el8.4.0+10193+e90fd8eb.src.rpm udica-0.2.1-2.module+el8.4.0+10193+e90fd8eb.src.rpm
aarch64: buildah-1.11.6-8.module+el8.4.0+10193+e90fd8eb.aarch64.rpm buildah-debuginfo-1.11.6-8.module+el8.4.0+10193+e90fd8eb.aarch64.rpm buildah-debugsource-1.11.6-8.module+el8.4.0+10193+e90fd8eb.aarch64.rpm buildah-tests-1.11.6-8.module+el8.4.0+10193+e90fd8eb.aarch64.rpm buildah-tests-debuginfo-1.11.6-8.module+el8.4.0+10193+e90fd8eb.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:2291-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2291
Issue date: 2021-06-08

Topic

An update for the container-tools:2.0 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 Red Hat critical symlink attack security impact container-tools

Relevant Releases Architectures

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

Bugs Fixed

1954736 - CVE-2021-30465 runc: vulnerable to symlink exchange attack

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