[ GLSA 201201-18 ] bip: Multiple vulnerabilities

[Alex Legler <a3li () gentoo org>]

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Gentoo Linux Security Advisory                           GLSA 201201-18
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                                            http://security.gentoo.org/
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 Severity: High
    Title: bip: Multiple vulnerabilities
     Date: January 30, 2012
     Bugs: #336321, #400599
       ID: 201201-18

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Synopsis
========

Multiple vulnerabilities in bip might allow remote unauthenticated
attackers to cause a Denial of Service or possibly execute arbitrary
code.

Background
==========

bip is a multi-user IRC proxy with SSL support.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  net-irc/bip                 < 0.8.8-r1               >= 0.8.8-r1 

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

Multiple vulnerabilities have been discovered in bip:

* Uli Schlachter reported that bip does not properly handle invalid
data during authentication, resulting in a daemon crash
(CVE-2010-3071).
* Julien Tinnes reported that bip does not check the number of open
file descriptors against FD_SETSIZE, resulting in a stack buffer
overflow (CVE-2012-0806).

Impact
======

A remote attacker could exploit these vulnerabilities to execute
arbitrary code with the privileges of the user running the bip daemon,
or cause a Denial of Service condition.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All bip users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-irc/bip-0.8.8-r1"

NOTE: The CVE-2010-3071 flaw was already corrected in an earlier
version of bip and is included in this advisory for completeness.

References
==========

[ 1 ] CVE-2010-3071
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-3071
[ 2 ] CVE-2012-0806
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0806

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

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

 http://security.gentoo.org/glsa/glsa-201201-18.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 2012 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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