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UNIRAS Brief - 271/06 - Gentoo Linux Security Advisories:



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   UNIRAS (UK Govt CERT) Briefing Notice - 271/06 dated 10.04.06  Time: 14:25  
  UNIRAS is part of NISCC (National Infrastructure Security Co-ordination Centre)
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  UNIRAS material is also available from its website at www.uniras.gov.uk and
         Information about NISCC is available from www.niscc.gov.uk
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Title
=====

Gentoo Linux Security Advisories:

1. GLSA 200604-04 - Kaffeine: Buffer overflow

2. GLSA 200604-05 - Doomsday: Format string vulnerability

3. GLSA 200604-06 - ClamAV: Multiple vulnerabilities

Detail
====== 

1. Kaffeine uses an unchecked buffer when fetching remote RAM playlists
via HTTP.

2. Luigi Auriemma discovered that Doomsday incorrectly implements
formatted printing.

3. ClamAV contains format string vulnerabilities in the logging code
(CVE-2006-1615). Furthermore Damian Put discovered an integer overflow
in ClamAV's PE header parser (CVE-2006-1614) and David Luyer discovered
that ClamAV can be tricked into performing an invalid memory access
(CVE-2006-1630).



1.


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Gentoo Linux Security Advisory                           GLSA 200604-04
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Kaffeine: Buffer overflow
      Date: April 05, 2006
      Bugs: #127326
        ID: 200604-04

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Synopsis
========

Kaffeine is vulnerable to a buffer overflow that could lead to the
execution of arbitrary code.

Background
==========

Kaffeine is a graphical front-end for the xine-lib multimedia library.

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

    -------------------------------------------------------------------
     Package               /  Vulnerable  /                 Unaffected
    -------------------------------------------------------------------
  1  media-video/kaffeine     < 0.7.1-r2                   >= 0.7.1-r2

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

Kaffeine uses an unchecked buffer when fetching remote RAM playlists
via HTTP.

Impact
======

A remote attacker could entice a user to play a specially-crafted RAM
playlist resulting in the execution of arbitrary code with the
permissions of the user running the application.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Kaffeine users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-video/kaffeine-0.7.1-r2"

References
==========

  [ 1 ] CVE-2006-0051
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0051
  [ 2 ] KDE Security Advisory: Kaffeine buffer overflow
        http://www.kde.org/info/security/advisory-20060404-1.txt

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

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

  http://security.gentoo.org/glsa/glsa-200604-04.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@xxxxxxxxxx or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2006 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/2.0



2.


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Gentoo Linux Security Advisory                           GLSA 200604-05
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                                            http://security.gentoo.org/
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  Severity: High
     Title: Doomsday: Format string vulnerability
      Date: April 06, 2006
      Bugs: #128690
        ID: 200604-05

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Synopsis
========

Format string vulnerabilities in Doomsday may lead to the execution of
arbitrary code.

Background
==========

Doomsday is a modern gaming engine for popular ID games like Doom,
Heretic and Hexen.

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

    -------------------------------------------------------------------
     Package             /   Vulnerable   /                 Unaffected
    -------------------------------------------------------------------
  1  games-fps/doomsday      <= 1.8.6-r1                   Vulnerable!
    -------------------------------------------------------------------
     NOTE: Certain packages are still vulnerable. Users should migrate
           to another package if one is available or wait for the
           existing packages to be marked stable by their
           architecture maintainers.

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

Luigi Auriemma discovered that Doomsday incorrectly implements
formatted printing.

Impact
======

A remote attacker could exploit these vulnerabilities to execute
arbitrary code with the rights of the user running the Doomsday server
or client by sending specially crafted strings.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

Doomsday has been masked in Portage pending the resolution of these
issues. All Doomsday users are advised to uninstall the package until
further notice.

    # emerge --ask --verbose --unmerge games-fps/doomsday

References
==========

  [ 1 ] CVE-2006-1618
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1618
  [ 2 ] Original advisory by Luigi Auriemma
        http://aluigi.altervista.org/adv/doomsdayfs-adv.txt

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

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

  http://security.gentoo.org/glsa/glsa-200604-05.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@xxxxxxxxxx or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2006 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/2.0



3.


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Gentoo Linux Security Advisory                           GLSA 200604-06
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                                            http://security.gentoo.org/
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  Severity: High
     Title: ClamAV: Multiple vulnerabilities
      Date: April 07, 2006
      Bugs: #128963
        ID: 200604-06

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Synopsis
========

ClamAV contains multiple vulnerabilities that could lead to remote
execution of arbitrary code or cause an application crash.

Background
==========

ClamAV is a GPL virus scanner.

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

    -------------------------------------------------------------------
     Package               /  Vulnerable  /                 Unaffected
    -------------------------------------------------------------------
  1  app-antivirus/clamav      < 0.88.1                      >= 0.88.1

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

ClamAV contains format string vulnerabilities in the logging code
(CVE-2006-1615). Furthermore Damian Put discovered an integer overflow
in ClamAV's PE header parser (CVE-2006-1614) and David Luyer discovered
that ClamAV can be tricked into performing an invalid memory access
(CVE-2006-1630).

Impact
======

By sending a malicious attachment to a mail server running ClamAV, a
remote attacker could cause a Denial of Service or the execution of
arbitrary code. Note that the overflow in the PE header parser is only
exploitable when the ArchiveMaxFileSize option is disabled.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All ClamAV users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.88.1"

References
==========

  [ 1 ] CVE-2006-1614
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1614
  [ 2 ] CVE-2006-1615
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1615
  [ 3 ] CVE-2006-1630
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1630

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

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

  http://security.gentoo.org/glsa/glsa-200604-06.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@xxxxxxxxxx or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2006 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/2.0



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For additional information or assistance, please contact the HELP Desk by 
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Tel: +44 (0) 870 487 0748 and follow the prompts

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UNIRAS wishes to acknowledge the contributions of Gentoo for the information 
contained in this Briefing. 
- ----------------------------------------------------------------------------------
This Briefing contains the information released by the original author. Some 
of the information may have changed since it was released. If the vulnerability 
affects you, it may be prudent to retrieve the advisory from the site of the
original source to ensure that you receive the most current information concerning 
that problem.

Reference to any specific commercial product, process, or service by trade 
name, trademark manufacturer, or otherwise, does not constitute or imply 
its endorsement, recommendation, or favouring by UNIRAS or NISCC.  The views 
and opinions of authors expressed within this notice shall not be used for 
advertising or product endorsement purposes.

Neither UNIRAS or NISCC shall also accept responsibility for any errors 
or omissions contained within this briefing notice. In particular, they shall 
not be liable for any loss or damage whatsoever, arising from or in connection 
with the usage of information contained within this notice.

UNIRAS is a member of the Forum of Incident Response and Security Teams (FIRST) 
and has contacts with other international Incident Response Teams (IRTs) in 
order to foster cooperation and coordination in incident prevention, to prompt 
rapid reaction to incidents, and to promote information sharing amongst its 
members and the community at large. 
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<End of UNIRAS Briefing>

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