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[gentoo-announce] [ GLSA 201706-02 ] Shadow: Multiple vulnerabilities

Posted on 06 June 2017
Gentoo-announce

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From: Yury German <blueknight@gentoo.org>
To: gentoo-announce@lists.gentoo.org
Message-ID: <c4f79dfe-027e-2104-b4ca-0a8f89dafe67@gentoo.org>
Subject: [ GLSA 201706-02 ] Shadow: Multiple vulnerabilities

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Gentoo Linux Security Advisory GLSA 201706-02
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https://security.gentoo.org/
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Severity: High
Title: Shadow: Multiple vulnerabilities
Date: June 06, 2017
Bugs: #610804, #620510
ID: 201706-02

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Synopsis
========
Multiple vulnerabilities have been found in Shadow, the worst of which
might allow privilege escalation.

Background
==========
Shadow is a set of tools to deal with user accounts.

Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 sys-apps/shadow < 4.4-r2 >= 4.4-r2

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

Impact
======
A local attacker could possibly cause a Denial of Service condition,
gain privileges via crafted input, or SIGKILL arbitrary processes.

Workaround
==========
There is no known workaround at this time.

Resolution
==========
All Shadow users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/shadow-4.4-r2"

References
==========
[ 1 ] CVE-2016-6252
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-6252
[ 2 ] CVE-2017-2616
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-2616

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

https://security.gentoo.org/glsa/201706-02

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 2017 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.

http://creativecommons.org/licenses/by-sa/2.5


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