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[ GLSA 200412-02 ] PDFlib: Multiple overflows in the included TIFF library
From: Luke Macken <lewk () gentoo org>
Date: Sun, 5 Dec 2004 11:27:47 -0500

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Gentoo Linux Security Advisory                           GLSA 200412-02
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: PDFlib: Multiple overflows in the included TIFF library
      Date: December 05, 2004
      Bugs: #69043
        ID: 200412-02

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Synopsis
========

PDFlib is vulnerable to multiple overflows, which can potentially lead
to the execution of arbitrary code.

Background
==========

PDFlib is a library providing functions to handle PDF files. It
includes a modified TIFF library used to process TIFF images.

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

    -------------------------------------------------------------------
     Package            /  Vulnerable  /                    Unaffected
    -------------------------------------------------------------------
  1  media-libs/pdflib     < 5.0.4_p1                      >= 5.0.4_p1

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

The TIFF library is subject to several known vulnerabilities (see GLSA
200410-11). Most of these overflows also apply to PDFlib.

Impact
======

A remote attacker could entice a user or web application to process a
carefully crafted PDF file or TIFF image using a PDFlib-powered
program. This can potentially lead to the execution of arbitrary code
with the rights of the program processing the file.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All PDFlib users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/pdflib-5.0.4_p1"

References
==========

  [ 1 ] PDFlib ChangeLog
        http://www.pdflib.com/products/pdflib/info/PDFlib-5.0.4p1-changes.txt
  [ 2 ] CAN-2004-0803
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0803
  [ 3 ] CAN-2004-0804
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0804
  [ 4 ] CAN-2004-0886
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0886
  [ 5 ] GLSA 200410-11
        http://www.gentoo.org/security/en/glsa/glsa-200410-11.xml

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

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

  http://security.gentoo.org/glsa/glsa-200412-02.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
http://bugs.gentoo.org.

License
=======

Copyright 2004 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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