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Gentoo Linux Security Advisory                           GLSA 201502-05
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                                            http://security.gentoo.org/
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 Severity: Normal
    Title: tcpdump: Multiple vulnerabilities
     Date: February 07, 2015
     Bugs: #534660
       ID: 201502-05

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Synopsis
========

Multiple vulnerabilities in tcpdump could result in execution of
arbitrary code or Denial of Service.

Background
==========

tcpdump is a tool for capturing and inspecting network traffic.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-analyzer/tcpdump        < 4.6.2-r1               >= 4.6.2-r1

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

Multiple vulnerabilities have been discovered in tcpdump:

* The olsr_print function function contains an integer underflow error
  (CVE-2014-8767)
* The geonet_print function function contains multiple integer
  underflow errors (CVE-2014-8768)
* The decoder for the Ad hoc On-Demand Distance Vector protocol
  contains an out-of-bounds memory access error (CVE-2014-8769)
* The ppp_hdlc function contains a buffer overflow error
  (CVE-2014-9140)

Impact
======

A remote attacker may be able to send a specially crafted packet,
possibly resulting in execution of arbitrary code or a Denial of
Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All tcpdump users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-analyzer/tcpdump-4.6.2-r1"

References
==========

[ 1 ] CVE-2014-8767
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-8767
[ 2 ] CVE-2014-8768
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-8768
[ 3 ] CVE-2014-8769
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-8769
[ 4 ] CVE-2014-9140
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2014-9140

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

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

 http://security.gentoo.org/glsa/glsa-201502-05.xml

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 2015 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