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Gentoo: pdftohtml Vulnerabilities in included Xpdf Print E-mail
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Posted by Benjamin D. Thomas   
Gentoo pdftohtml includes vulnerable Xpdf code to handle PDF files, making it vulnerable to execution of arbitrary code upon converting a malicious PDF file.
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Gentoo Linux Security Advisory                           GLSA 200502-10
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: pdftohtml: Vulnerabilities in included Xpdf
      Date: February 09, 2005
      Bugs: #78629
        ID: 200502-10

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Synopsis
========

pdftohtml includes vulnerable Xpdf code to handle PDF files, making it
vulnerable to execution of arbitrary code upon converting a malicious
PDF file.

Background
==========

pdftohtml is a utility to convert PDF files to HTML or XML formats. It
makes use of Xpdf code to decode PDF files.

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

    -------------------------------------------------------------------
     Package             /  Vulnerable  /                   Unaffected
    -------------------------------------------------------------------
  1  app-text/pdftohtml      < 0.36-r3                      >= 0.36-r3

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

Xpdf is vulnerable to a buffer overflow, as described in GLSA
200501-28.

Impact
======

An attacker could entice a user to convert a specially-crafted PDF
file, potentially resulting in the execution of arbitrary code with the
rights of the user running pdftohtml.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All pdftohtml users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-text/pdftohtml-0.36-r3"

References
==========

  [ 1 ] GLSA 200501-28
        http://www.gentoo.org/security/en/glsa/glsa-200501-28.xml
  [ 2 ] CAN-2005-0064
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0064

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

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

  http://security.gentoo.org/glsa/glsa-200502-10.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 2005 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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