- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 201805-10
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                           https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: Normal
    Title: Zsh: Multiple vulnerabilities
     Date: May 26, 2018
     Bugs: #649614, #651860, #655708
       ID: 201805-10

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

Multiple vulnerabilities have been found in Zsh, the worst of which
could allow local attackers to execute arbitrary code.

Background
==========

A shell designed for interactive use, although it is also a powerful
scripting language.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-shells/zsh                < 5.5                       >= 5.5 

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

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

Impact
======

A local attacker could execute arbitrary code, escalate privileges, or
cause a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Zsh users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-shells/zsh-5.5"

References
==========

[ 1 ] CVE-2017-18205
      https://nvd.nist.gov/vuln/detail/CVE-2017-18205
[ 2 ] CVE-2017-18206
      https://nvd.nist.gov/vuln/detail/CVE-2017-18206
[ 3 ] CVE-2018-1071
      https://nvd.nist.gov/vuln/detail/CVE-2018-1071
[ 4 ] CVE-2018-1083
      https://nvd.nist.gov/vuln/detail/CVE-2018-1083
[ 5 ] CVE-2018-1100
      https://nvd.nist.gov/vuln/detail/CVE-2018-1100
[ 6 ] CVE-2018-7548
      https://nvd.nist.gov/vuln/detail/CVE-2018-7548
[ 7 ] CVE-2018-7549
      https://nvd.nist.gov/vuln/detail/CVE-2018-7549

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

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

 https://security.gentoo.org/glsa/201805-10

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