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Gentoo Linux Security Advisory 201805-10

Gentoo Linux Security Advisory 201805-10
Posted May 26, 2018
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201805-10 - Multiple vulnerabilities have been found in Zsh, the worst of which could allow local attackers to execute arbitrary code. Versions less than 5.5 are affected.

tags | advisory, arbitrary, local, vulnerability
systems | linux, gentoo
advisories | CVE-2017-18205, CVE-2017-18206, CVE-2018-1071, CVE-2018-1083, CVE-2018-1100, CVE-2018-7548, CVE-2018-7549
MD5 | 54ba950c21714a4e2cb2d0c8b4983b27

Gentoo Linux Security Advisory 201805-10

Change Mirror Download
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Gentoo Linux Security Advisory GLSA 201805-10
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https://security.gentoo.org/
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Severity: Normal
Title: Zsh: Multiple vulnerabilities
Date: May 26, 2018
Bugs: #649614, #651860, #655708
ID: 201805-10

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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

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