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Gentoo Linux Security Advisory                           GLSA 201607-16
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                                           https://security.gentoo.org/
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 Severity: High
    Title: arpwatch: Privilege escalation
     Date: July 20, 2016
     Bugs: #419375
       ID: 201607-16

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Synopsis
=======
arpwatch is vulnerable to the escalation of privileges.

Background
=========
The ethernet monitor program; for keeping track of ethernet/ip address
pairings.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-analyzer/arpwatch      < 2.1.15-r8              >= 2.1.15-r8 

Description
==========
Arpwatch does not properly drop supplementary groups.

Impact
=====
Attackers, if able to exploit arpwatch, could escalate privileges
outside of the running process.

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

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

  # emerge --sync
  # emerge --ask -v --oneshot ">=net-analyzer/arpwatch-2.1.15-r8"

References
=========
[ 1 ] CVE-2012-2653
      http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-2653

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

 https://security.gentoo.org/glsa/201607-16

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 2016 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/