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Gentoo Linux Security Advisory                           GLSA 201206-13
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                                            http://security.gentoo.org/
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 Severity: High
    Title: Mono: Multiple vulnerabilities
     Date: June 21, 2012
     Bugs: #277878, #342133, #345561, #346401, #351087, #372983
       ID: 201206-13

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Synopsis
========

Multiple vulnerabilities were found in Mono, the worst of which
allowing for the remote execution of arbitrary code.

Background
==========

Mono is an open source implementation of Microsoft's .NET Framework.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  dev-util/mono-debugger      < 2.8.1-r1               >= 2.8.1-r1
  2  dev-lang/mono              < 2.10.2-r1              >= 2.10.2-r1
    -------------------------------------------------------------------
     2 affected packages

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

Multiple vulnerabilities have been discovered in Mono and Mono
debugger. Please review the CVE identifiers referenced below for
details.

Impact
======

A remote attacker could execute arbitrary code, bypass general
constraints, obtain the source code for .aspx applications, obtain
other sensitive information, cause a Denial of Service, modify internal
data structures, or corrupt the internal state of the security manager.

A local attacker could entice a user into running Mono debugger in a
directory containing a specially crafted library file to execute
arbitrary code with the privileges of the user running Mono debugger.

A context-dependant attacker could bypass the authentication mechanism
provided by the XML Signature specification.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Mono debugger users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot -v ">=dev-util/mono-debugger-2.8.1-r1"

All Mono users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=dev-lang/mono-2.10.2-r1"

References
==========

[  1 ] CVE-2009-0217
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-0217
[  2 ] CVE-2010-3332
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-3332
[  3 ] CVE-2010-3369
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-3369
[  4 ] CVE-2010-4159
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-4159
[  5 ] CVE-2010-4225
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-4225
[  6 ] CVE-2010-4254
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-4254
[  7 ] CVE-2011-0989
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0989
[  8 ] CVE-2011-0990
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0990
[  9 ] CVE-2011-0991
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0991
[ 10 ] CVE-2011-0992
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0992

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

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

 http://security.gentoo.org/glsa/glsa-201206-13.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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