[Full-disclosure] [ GLSA 200510-18 ] Netpbm: Buffer overflow in pnmtopng

From: Thierry Carrez (koon_at_gentoo.org)
Date: 10/20/05

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To: gentoo-announce@lists.gentoo.org

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    Gentoo Linux Security Advisory GLSA 200510-18
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                                                http://security.gentoo.org/
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      Severity: Normal
         Title: Netpbm: Buffer overflow in pnmtopng
          Date: October 20, 2005
          Bugs: #109705
            ID: 200510-18

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    Synopsis
    ========

    The pnmtopng utility, part of the Netpbm tools, contains a
    vulnerability which can potentially result in the execution of
    arbitrary code.

    Background
    ==========

    Netpbm is a package of 220 graphics programs and a programming library,
    including pnmtopng, a tool to convert PNM image files to the PNG
    format.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 media-libs/netpbm < 10.29 >= 10.29

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

    RedHat reported that pnmtopng is vulnerable to a buffer overflow.

    Impact
    ======

    An attacker could craft a malicious PNM file and entice a user to run
    pnmtopng on it, potentially resulting in the execution of arbitrary
    code with the permissions of the user running pnmtopng.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All Netpbm users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=media-libs/netpbm-10.29"

    References
    ==========

      [ 1 ] CAN-2005-2978
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2978

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

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

      http://security.gentoo.org/glsa/glsa-200510-18.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

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