[ GLSA 200406-22 ] Pavuk: Remote buffer overflow

From: Kurt Lieber (klieber_at_gentoo.org)
Date: 06/30/04

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To: gentoo-announce@gentoo.org

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    Gentoo Linux Security Advisory GLSA 200406-22
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                                                http://security.gentoo.org/
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      Severity: High
         Title: Pavuk: Remote buffer overflow
          Date: June 30, 2004
            ID: 200406-22

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    Synopsis
    ========

    Pavuk contains a bug potentially allowing an attacker to run arbitrary
    code.

    Background
    ==========

    Pavuk is web spider and website mirroring tool.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 net-misc/pavuk <= 0.9.28-r1 >= 0.9.28-r2

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

    When Pavuk connects to a web server and the server sends back the HTTP
    status code 305 (Use Proxy), Pavuk copies data from the HTTP Location
    header in an unsafe manner.

    Impact
    ======

    An attacker could cause a stack-based buffer overflow which could lead
    to arbitrary code execution with the rights of the user running Pavuk.

    Workaround
    ==========

    There is no known workaround at this time. All users are encouraged to
    upgrade to the latest available version.

    Resolution
    ==========

    All Pavuk users should upgrade to the latest stable version:

        # emerge sync

        # emerge -pv ">=net-misc/pavuk-0.9.28-r2"
        # emerge ">="net-misc/pavuk-0.9.28-r2

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

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

         http://security.gentoo.org/glsa/glsa-200406-22.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 Technologies, 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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