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Gentoo Linux Security Advisory                           GLSA 201803-03
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                                           https://security.gentoo.org/
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 Severity: High
    Title: Go: User-assisted execution of arbitrary code
     Date: March 07, 2018
     Bugs: #647250
       ID: 201803-03

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Synopsis
========

A vulnerability in Go might allow remote attackers to execute arbitrary
commands during source code build.

Background
==========

Go is an open source programming language that makes it easy to build
simple, reliable, and efficient software.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-lang/go                  < 1.9.4                    >= 1.9.4

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

A command injection flaw was discovered in the source code build phase
because of the "go get" command, which does not block -fplugin= and
-plugin arguments.

Impact
======

A remote attacker could entice a user to process a repository
containing maliciously-crafted build instructions using "go get",
resulting in the execution of arbitrary code with the privileges of the
process.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Go users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-lang/go-1.9.4"

References
==========

[ 1 ] CVE-2018-6574
      https://nvd.nist.gov/vuln/detail/CVE-2018-6574

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

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

 https://security.gentoo.org/glsa/201803-03

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 2018 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