[ GLSA 200508-08 ] Xpdf, Kpdf, GPdf: Denial of Service vulnerability

From: Sune Kloppenborg Jeppesen (jaervosz_at_gentoo.org)
Date: 08/16/05

  • Next message: alireza hassani: "SQL injection in Persianblog" 
    To: gentoo-announce@gentoo.org
Date: Tue, 16 Aug 2005 07:19:12 +0200

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    Gentoo Linux Security Advisory GLSA 200508-08
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                                http://security.gentoo.org/
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

      Severity: Normal
         Title: Xpdf, Kpdf, GPdf: Denial of Service vulnerability
          Date: August 16, 2005
          Bugs: #99769, #100263, #100265
            ID: 200508-08

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

    Synopsis
    ========

    Xpdf, Kpdf and GPdf may crash as a result of a Denial of Service
    vulnerability.

    Background
    ==========

    Xpdf, Kpdf and GPdf are PDF file viewers that run under the X Window
    System. Kpdf and GPdf both contain Xpdf code. Kpdf is also part of
    kdegraphics.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 app-text/xpdf < 3.00-r10 >= 3.00-r10
      2 kde-base/kdegraphics < 3.3.2-r3 >= 3.3.2-r3
      3 kde-base/kpdf < 3.4.1-r1 >= 3.4.1-r1
      4 app-text/gpdf < 2.10.0-r1 >= 2.10.0-r1
        -------------------------------------------------------------------
         4 affected packages on all of their supported architectures.
        -------------------------------------------------------------------

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

    Xpdf, Kpdf and GPdf do not handle a broken table of embedded TrueType
    fonts correctly. After detecting such a table, Xpdf, Kpdf and GPdf
    attempt to reconstruct the information in it by decoding the PDF file,
    which causes the generation of a huge temporary file.

    Impact
    ======

    A remote attacker may cause a Denial of Service by creating a specially
    crafted PDF file, sending it to a CUPS printing system (which uses
    Xpdf), or by enticing a user to open it in Xpdf, Kpdf, 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-r10"

    All GPdf users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=app-text/gpdf-2.10.0-r1"

    All Kpdf users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=kde-base/kdegraphics-3.3.2-r3"

    All KDE Split Ebuild Kpdf users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=kde-base/kpdf-3.4.1-r1"

    References
    ==========

      [ 1 ] CAN-2005-2097
            http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2097

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

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

      http://security.gentoo.org/glsa/glsa-200508-08.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

  • Next message: alireza hassani: "SQL injection in Persianblog"

    Relevant Pages