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Gentoo Linux Security Advisory                           GLSA 200412-24
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  Severity: Normal
     Title: Xpdf, GPdf: New integer overflows
      Date: December 28, 2004
      Bugs: #75191, #75201
        ID: 200412-24

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Synopsis
========

New integer overflows were discovered in Xpdf, potentially resulting in
the execution of arbitrary code. GPdf includes Xpdf code and therefore
is vulnerable to the same issues.

Background
==========

Xpdf is an open source viewer for Portable Document Format (PDF) files.
GPdf is a Gnome-based PDF viewer that includes some Xpdf code.

Affected packages
=================

    -------------------------------------------------------------------
     Package        /  Vulnerable  /                        Unaffected
    -------------------------------------------------------------------
  1  app-text/xpdf     <= 3.00-r6                           >= 3.00-r7
  2  app-text/gpdf      <= 2.8.1                           >= 2.8.1-r1
    -------------------------------------------------------------------
     2 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

A new integer overflow issue was discovered in Xpdf's Gfx::doImage()
function.

Impact
======

An attacker could entice an user to open a specially-crafted PDF file,
potentially resulting in execution of arbitrary code with the rights of
the user running Xpdf or GPdf.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Xpdf users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-text/xpdf-3.00-r7"

All GPdf users should also upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-text/gpdf-2.8.1-r1"

References
==========

  [ 1 ] CAN-2004-1125
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1125
  [ 2 ] iDEFENSE Advisory

http://www.idefense.com/application/poi/display?id=172&type=vulnerabilities&flashstatus=true

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

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

  http://security.gentoo.org/glsa/glsa-200412-24.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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