[Full-Disclosure] [ GLSA 200411-16 ] zip: Path name buffer overflow

From: Sune Kloppenborg Jeppesen (jaervosz_at_gentoo.org)
Date: 11/09/04

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    To: gentoo-announce@gentoo.org
    Date: Tue, 9 Nov 2004 20:46:11 +0100
    
    
    

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    Gentoo Linux Security Advisory GLSA 200411-16
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                                                http://security.gentoo.org/
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      Severity: Normal
         Title: zip: Path name buffer overflow
          Date: November 09, 2004
          Bugs: #70227
            ID: 200411-16

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    Synopsis
    ========

    zip contains a buffer overflow when creating a ZIP archive of files
    with very long path names. This could lead to the execution of
    arbitrary code.

    Background
    ==========

    zip is a compression and file packaging utility.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 app-arch/zip <= 2.3-r3 >= 2.3-r4

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

    zip does not check the resulting path length when doing recursive
    folder compression.

    Impact
    ======

    An attacker could exploit this by enticing another user or web
    application to create an archive including a specially-crafted path
    name, potentially resulting in the execution of arbitrary code with the
    permissions of the user running zip.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All zip users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=app-arch/zip-2.3-r4"

    References
    ==========

      [ 1 ] HexView zip Advisory
            http://www.hexview.com/docs/20041103-1.txt

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

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

      http://security.gentoo.org/glsa/glsa-200411-16.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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