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From: Aaron Bauman <bman@gentoo.org>
To: gentoo-announce@lists.gentoo.org
Message-ID: <b99cc2a4-7ac2-d3cf-4503-12bf1268e364@gentoo.org>
Subject: [ GLSA 201701-50 ] PPP: Buffer overflow

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Gentoo Linux Security Advisory                           GLSA 201701-50
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: PPP: Buffer overflow
     Date: January 23, 2017
     Bugs: #546554
       ID: 201701-50

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Synopsis
========

A buffer overflow in PPP might allow remote attackers to cause a Denial
of Service condition.

Background
==========

PPP is a Unix implementation of the Point-to-Point Protocol

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-dialup/ppp              < 2.4.7-r3               >= 2.4.7-r3

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

A buffer overflow was discovered in the rc_mksid function in
plugins/radius/util.c in PPP when the PID for pppd is greater than
65535.

Impact
======

A remote attacker could cause a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All PPP users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-dialup/ppp-2.4.7-r3"

References
==========

[ 1 ] CVE-2015-3310
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-3310

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

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

 https://security.gentoo.org/glsa/201701-50

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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