[Full-disclosure] [ GLSA 200602-04 ] Xpdf, Poppler: Heap overflow

[Thierry Carrez]

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Gentoo Linux Security Advisory                           GLSA 200602-04
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Xpdf, Poppler: Heap overflow
      Date: February 12, 2006
      Bugs: #120985
        ID: 200602-04

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Synopsis
========

Xpdf and Poppler are vulnerable to a heap overflow that may be
exploited to execute arbitrary code.

Background
==========

Xpdf is a PDF file viewer that runs under the X Window System. Poppler
is a PDF rendering library based on the Xpdf 3.0 code base.

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

    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  app-text/xpdf         < 3.01-r7                        >= 3.01-r7
  2  app-text/poppler     < 0.5.0-r4                       >= 0.5.0-r4
    -------------------------------------------------------------------
     2 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

Dirk Mueller has reported a vulnerability in Xpdf. It is caused by a
missing boundary check in the splash rasterizer engine when handling
PDF splash images with overly large dimensions.

Impact
======

By sending a specially crafted PDF file to a victim, an attacker could
cause an overflow, potentially resulting in the execution of arbitrary
code with the privileges of the user running the application.

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-3.01-r7"

All Poppler users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-text/poppler-0.5.0-r4"

References
==========

  [ 1 ] CVE-2006-0301
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0301

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

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

  http://security.gentoo.org/glsa/glsa-200602-04.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 at gentoo.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/2.0

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