[ GLSA 200411-28 ] X.Org, XFree86: libXpm vulnerabilities

From: Thierry Carrez (koon_at_gentoo.org)
Date: 11/19/04

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To: gentoo-announce@lists.gentoo.org

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    Gentoo Linux Security Advisory GLSA 200411-28
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                                                http://security.gentoo.org/
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      Severity: Normal
         Title: X.Org, XFree86: libXpm vulnerabilities
          Date: November 19, 2004
          Bugs: #68544
            ID: 200411-28

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    Synopsis
    ========

    libXpm contains several vulnerabilities that could lead to a Denial of
    Service and arbitrary code execution.

    Background
    ==========

    libXpm is a pixmap manipulation library for the X Window System,
    included in both X.Org and XFree86.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 x11-base/xorg-x11 < 6.8.0-r3 >= 6.8.0-r3
                                                              *>= 6.7.0-r3
      2 x11-base/xfree < 4.3.0-r8 >= 4.3.0-r8
        -------------------------------------------------------------------
         2 affected packages on all of their supported architectures.
        -------------------------------------------------------------------

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

    Several issues were discovered in libXpm, including integer overflows,
    out-of-bounds memory accesses, insecure path traversal and an endless
    loop.

    Impact
    ======

    An attacker could craft a malicious pixmap file and entice a user to
    use it with an application linked against libXpm. This could lead to
    Denial of Service or arbitrary code execution.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All X.Org users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=x11-base/xorg-x11-6.7.0-r3"

    All XFree86 users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=x11-base/xfree-x11-4.3.0-r8"

    References
    ==========

      [ 1 ] CAN-2004-0914
            http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0914

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

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

      http://security.gentoo.org/glsa/glsa-200411-28.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/2.0

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