[Full-Disclosure] [ GLSA 200410-20 ] Xpdf, CUPS: Multiple integer overflows

From: Thierry Carrez (koon_at_gentoo.org)
Date: 10/21/04

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    To: gentoo-announce@gentoo.org
    Date: Thu, 21 Oct 2004 16:40:08 +0200
    
    
    

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    Gentoo Linux Security Advisory GLSA 200410-20
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                                                http://security.gentoo.org/
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      Severity: Normal
         Title: Xpdf, CUPS: Multiple integer overflows
          Date: October 21, 2004
            ID: 200410-20

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    Synopsis
    ========

    Multiple integer overflows were discovered in Xpdf, potentially
    resulting in execution of arbitrary code upon viewing a malicious PDF
    file. CUPS includes Xpdf code and therefore is vulnerable to the same
    issues.

    Background
    ==========

    Xpdf is an open source viewer for Portable Document Format (PDF) files.
    The Common UNIX Printing System (CUPS) is a cross-platform print
    spooler that includes some Xpdf code.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 app-text/xpdf <= 3.00-r2 >= 3.00-r3
      2 net-print/cups <= 1.1.20-r3 >= 1.1.20-r4
        -------------------------------------------------------------------
         2 affected packages on all of their supported architectures.
        -------------------------------------------------------------------

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

    Chris Evans discovered multiple integer overflow issues in Xpdf.

    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. By enticing an user to directly print the PDF
    file to a CUPS printer, an attacker could also crash the CUPS spooler
    or execute arbitrary code with the rights of the CUPS spooler, which is
    usually the "lp" user.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All Xpdf users should upgrade to the latest version:

        # emerge sync

        # emerge -pv ">=app-text/xpdf-3.00-r3"
        # emerge ">=app-text/xpdf-3.00-r3"

    All CUPS users should also upgrade to the latest version:

        # emerge sync

        # emerge -pv ">=net-print/cups-1.1.20-r4"
        # emerge ">=net-print/cups-1.1.20-r4"

    References
    ==========

      [ 1 ] CAN-2004-0888
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0888
      [ 2 ] CAN-2004-0889
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0889

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

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

      http://security.gentoo.org/glsa/glsa-200410-20.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/1.0

    
    

    _______________________________________________
    Full-Disclosure - We believe in it.
    Charter: http://lists.netsys.com/full-disclosure-charter.html



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