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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
================
    -------------------------------------------------------------------
     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/