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[gentoo-announce] [ GLSA 202107-23 ] Docker: Multiple vulnerabilities

Posted on 10 July 2021
Gentoo-announce

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Gentoo Linux Security Advisory GLSA 202107-23
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https://security.gentoo.org/
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Severity: Normal
Title: Docker: Multiple vulnerabilities
Date: July 10, 2021
Bugs: #768612
ID: 202107-23

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Synopsis
========
Multiple vulnerabilities have been found in Docker, the worst of which
could result in privilege escalation to root on the host.

Background
==========
Docker is the world's leading software containerization platform.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-emulation/docker < 20.10.3 >= 19.03.15
>= 20.10.3

Description
===========
Multiple vulnerabilities have been discovered in Docker. Please review
the CVE identifiers referenced below for details.

Impact
======
Please review the referenced CVE identifiers for details.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All Docker 19.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-emulation/docker-19.03.15"

All Docker 20.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-emulation/docker-20.10.3"

References
==========
[ 1 ] CVE-2021-21284
https://nvd.nist.gov/vuln/detail/CVE-2021-21284
[ 2 ] CVE-2021-21285
https://nvd.nist.gov/vuln/detail/CVE-2021-21285

Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

https://security.gentoo.org/glsa/202107-23

Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======
Copyright 2021 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5


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