libTIFF: Multiple vulnerabilities

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Gentoo Linux Security Advisory                          
GLSA 200605-17
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                                            http://security.gentoo.or
g/
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  Severity: Normal
     Title: libTIFF: Multiple vulnerabilities
      Date: May 30, 2006
      Bugs: #129675
        ID: 200605-17

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Synopsis
========

Multiple vulnerabilities in libTIFF could lead to the
execution of
arbitrary code or a Denial of Service.

Background
==========

libTIFF provides support for reading and manipulating TIFF
images.

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

   
------------------------------------------------------------
-------
     Package          /  Vulnerable  /                     
Unaffected
   
------------------------------------------------------------
-------
  1  media-libs/tiff       < 3.8.1                       
    >= 3.8.1

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

Multiple vulnerabilities, ranging from integer overflows and
NULL
pointer dereferences to double frees, were reported in
libTIFF.

Impact
======

An attacker could exploit these vulnerabilities by enticing
a user to
open a specially crafted TIFF image, possibly leading to the
execution
of arbitrary code or a Denial of Service.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All libTIFF users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose
">=media-libs/tiff-3.8.1"

References
==========

  [ 1 ] CVE-2006-0405
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name
=CVE-2006-0405
  [ 2 ] CVE-2006-2024
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name
=CVE-2006-2024
  [ 3 ] CVE-2006-2025
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name
=CVE-2006-2025
  [ 4 ] CVE-2006-2026
        http://www.cve.mitre.org/cgi-bin/cvename.cgi?name
=CVE-2006-2026

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

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

  ht
tp://security.gentoo.org/glsa/glsa-200605-17.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
securitygentoo.org 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/2.5