[ GLSA 200508-04 ] Netpbm: Arbitrary code execution in pstopnm

From: Thierry Carrez (koon_at_gentoo.org)
Date: 08/05/05

  • Next message: Forte Systems - Iosif Peterfi: "RE: On classifying attacks" 
    Date: Fri, 05 Aug 2005 12:44:32 +0200
To: gentoo-announce@lists.gentoo.org

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    Gentoo Linux Security Advisory GLSA 200508-04
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                                http://security.gentoo.org/
    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

      Severity: Normal
         Title: Netpbm: Arbitrary code execution in pstopnm
          Date: August 05, 2005
          Bugs: #100398
            ID: 200508-04

    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

    Synopsis
    ========

    The pstopnm 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
    libraries, including pstopnm. pstopnm is a tool which converts
    PostScript files to PNM image files.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 media-libs/netpbm < 10.28 >= 10.28

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

    Max Vozeler reported that pstopnm calls the GhostScript interpreter on
    untrusted PostScript files without specifying the -dSAFER option, to
    convert a PostScript file into a PBM, PGM, or PNM file.

    Impact
    ======

    An attacker could craft a malicious PostScript file and entice a user
    to run pstopnm on it, resulting in the execution of arbitrary commands
    with the permissions of the user running pstopnm.

    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-10.28"

    References
    ==========

      [ 1 ] Secunia Advisory SA16184
            http://secunia.com/advisories/16184/

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

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

      http://security.gentoo.org/glsa/glsa-200508-04.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

  • Next message: Forte Systems - Iosif Peterfi: "RE: On classifying attacks"
    • Quantcast