[Full-Disclosure] [ GLSA 200411-12 ] zgv: Multiple buffer overflows

From: Luke Macken (lewk_at_gentoo.org)
Date: 11/07/04

  • Next message: Sune Kloppenborg Jeppesen: "[Full-Disclosure] [ GLSA 200411-13 ] Portage, Gentoolkit: Temporary file vulnerabilities" 
    To: gentoo-announce@gentoo.org
Date: Sun, 07 Nov 2004 11:59:35 -0500

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    Gentoo Linux Security Advisory GLSA 200411-12:01
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                                                http://security.gentoo.org/
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      Severity: Normal
         Title: zgv: Multiple buffer overflows
          Date: November 07, 2004
          Bugs: #69150
            ID: 200411-12:01

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    Synopsis
    ========

    zgv contains multiple buffer overflows that can potentially lead to the
    execution of arbitrary code.

    Background
    ==========

    zgv is a console image viewer based on svgalib.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 media-gfx/zgv < 5.8 >= 5.8

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

    Multiple arithmetic overflows have been detected in the image
    processing code of zgv.

    Impact
    ======

    An attacker could entice a user to open a specially-crafted image file,
    potentially resulting in execution of arbitrary code with the rights of
    the user running zgv.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All zgv users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=media-gfx/zgv-5.8"

    References
    ==========

      [ 1 ] BugTraq Advisory
            http://www.securityfocus.com/archive/1/379472

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

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

      http://security.gentoo.org/glsa/glsa-200411-12.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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