[ GLSA 200408-20 ] Qt: Image loader overflows

From: Joshua J. Berry (condordes_at_gentoo.org)
Date: 08/22/04

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    Date: Sun, 22 Aug 2004 14:24:04 -0700
To: gentoo-announce@lists.gentoo.org

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    Gentoo Linux Security Advisory GLSA 200408-20
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                                                http://security.gentoo.org/
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      Severity: Normal
         Title: Qt: Image loader overflows
          Date: August 22, 2004
          Bugs: #60855
            ID: 200408-20

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    Synopsis
    ========

    There are several bugs in Qt's image-handling code which could lead to
    crashes or arbitrary code execution.

    Background
    ==========

    Qt is a cross-platform GUI toolkit used by KDE.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 x11-libs/qt <= 3.3.2 >= 3.3.3

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

    There are several unspecified bugs in the QImage class which may cause
    crashes or allow execution of arbitrary code as the user running the Qt
    application. These bugs affect the PNG, XPM, BMP, GIF and JPEG image
    types.

    Impact
    ======

    An attacker may exploit these bugs by causing a user to open a
    carefully-constructed image file in any one of these formats. This may
    be accomplished through e-mail attachments (if the user uses KMail), or
    by simply placing a malformed image on a website and then convicing the
    user to load the site in a Qt-based browser (such as Konqueror).

    Workaround
    ==========

    There is no known workaround at this time. All users are encouraged to
    upgrade to the latest available version of Qt.

    Resolution
    ==========

    All Qt users should upgrade to the latest version:

        # emerge sync

        # emerge -pv ">=x11-libs/qt-3.3.3"
        # emerge ">=x11-libs/qt-3.3.3"

    References
    ==========

      [ 1 ] Mandrake Advisory
            http://www.mandrakesoft.com/security/advisories?name=MDKSA-2004:085
      [ 2 ] Qt 3.3.3 ChangeLog
            http://www.trolltech.com/developer/changes/changes-3.3.3.html

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

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

        http://security.gentoo.org/glsa/glsa-200408-20.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

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