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To: gentoo-announce@g.o
From: Sean Amoss <ackle@g.o>
Subject: [ GLSA 201201-13 ] MIT Kerberos 5: Multiple vulnerabilities
Date: Mon, 23 Jan 2012 15:31:18 -0500
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Gentoo Linux Security Advisory                           GLSA 201201-13
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                                            http://security.gentoo.org/
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 Severity: High
    Title: MIT Kerberos 5: Multiple vulnerabilities
     Date: January 23, 2012
     Bugs: #303723, #308021, #321935, #323525, #339866, #347369,
           #352859, #359129, #363507, #387585, #393429
       ID: 201201-13

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Synopsis
========

Multiple vulnerabilities have been found in MIT Kerberos 5, the most
severe of which may allow remote execution of arbitrary code.

Background
==========

MIT Kerberos 5 is a suite of applications that implement the Kerberos
network protocol.

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

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-crypt/mit-krb5          < 1.9.2-r1               >= 1.9.2-r1

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

Multiple vulnerabilities have been discovered in MIT Kerberos 5. Please
review the CVE identifiers referenced below for details.

Impact
======

A remote attacker may be able to execute arbitrary code with the
privileges of the administration daemon or the Key Distribution Center
(KDC) daemon, cause a Denial of Service condition, or possibly obtain
sensitive information. Furthermore, a remote attacker may be able to
spoof Kerberos authorization, modify KDC responses, forge user data
messages, forge tokens, forge signatures, impersonate a client, modify
user-visible prompt text, or have other unspecified impact.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All MIT Kerberos 5 users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-crypt/mit-krb5-1.9.2-r1"

References
==========

[  1 ] CVE-2009-3295
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-3295
[  2 ] CVE-2009-4212
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2009-4212
[  3 ] CVE-2010-0283
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-0283
[  4 ] CVE-2010-0629
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-0629
[  5 ] CVE-2010-1320
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-1320
[  6 ] CVE-2010-1321
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-1321
[  7 ] CVE-2010-1322
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-1322
[  8 ] CVE-2010-1323
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-1323
[  9 ] CVE-2010-1324
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-1324
[ 10 ] CVE-2010-4020
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-4020
[ 11 ] CVE-2010-4021
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-4021
[ 12 ] CVE-2010-4022
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-4022
[ 13 ] CVE-2011-0281
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0281
[ 14 ] CVE-2011-0282
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0282
[ 15 ] CVE-2011-0283
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0283
[ 16 ] CVE-2011-0284
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0284
[ 17 ] CVE-2011-0285
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-0285
[ 18 ] CVE-2011-1527
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1527
[ 19 ] CVE-2011-1528
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1528
[ 20 ] CVE-2011-1529
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1529
[ 21 ] CVE-2011-1530
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-1530
[ 22 ] CVE-2011-4151
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4151

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

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

 http://security.gentoo.org/glsa/glsa-201201-13.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@g.o 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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Updated Jun 25, 2012

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