A runC security update has been released for Gentoo Linux.

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Gentoo Linux Security Advisory GLSA 202003-21
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  https://security.gentoo.org/
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Severity: High
Title: runC: Multiple vulnerabilities
Date: March 15, 2020
Bugs: #677744, #709456, #711182
ID: 202003-21

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Synopsis
========

Multiple vulnerabilities have been discovered in runC, the worst of
which may lead to privilege escalation.

Background
==========

RunC is a CLI tool for spawning and running containers according to the
OCI specification.

Affected packages
=================

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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-emulation/runc < 1.0.0_rc10 >= 1.0.0_rc10

Description
===========

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

Impact
======

An attacker, by running a malicious Docker image, could escape the
container, bypass security restrictions, escalate privileges or cause a
Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All runC users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-emulation/runc-1.0.0_rc10"

References
==========

[ 1 ] CVE-2019-16884
  https://nvd.nist.gov/vuln/detail/CVE-2019-16884
[ 2 ] CVE-2019-19921
  https://nvd.nist.gov/vuln/detail/CVE-2019-19921
[ 3 ] CVE-2019-5736
  https://nvd.nist.gov/vuln/detail/CVE-2019-5736

Availability
============

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

  https://security.gentoo.org/glsa/202003-21

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 2020 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