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Gentoo Linux Security Advisory 201701-50

Gentoo Linux Security Advisory 201701-50
Posted Jan 23, 2017
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201701-50 - A buffer overflow in PPP might allow remote attackers to cause a Denial of Service condition. Versions less than 2.4.7-r3 are affected.

tags | advisory, remote, denial of service, overflow
systems | linux, gentoo
advisories | CVE-2015-3310
SHA-256 | eb839c40e3c3da25cc0f784f5c0a4545dfb3af6a4cb262819603922a07a75415

Gentoo Linux Security Advisory 201701-50

Change Mirror Download

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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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