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[gentoo-announce] [ GLSA 201701-50 ] PPP: Buffer overflow

Posted on 23 January 2017
Gentoo-announce

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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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