[Full-disclosure] [ GLSA 200504-14 ] monkeyd: Multiple vulnerabilities

From: Sune Kloppenborg Jeppesen (jaervosz_at_gentoo.org)
Date: 04/15/05

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    To: gentoo-announce@gentoo.org
Date: Fri, 15 Apr 2005 18:14:47 +0200

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    Gentoo Linux Security Advisory GLSA 200504-14
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                                                http://security.gentoo.org/
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      Severity: High
         Title: monkeyd: Multiple vulnerabilities
          Date: April 15, 2005
          Bugs: #87916
            ID: 200504-14

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    Synopsis
    ========

    Format string and Denial of Service vulnerabilities have been
    discovered in the monkeyd HTTP server, potentially resulting in the
    execution of arbitrary code.

    Background
    ==========

    monkeyd is a fast, efficient, small and easy to configure web server
    for Linux.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 www-servers/monkeyd < 0.9.1 >= 0.9.1

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

    Tavis Ormandy of the Gentoo Linux Security Audit Team discovered a
    double expansion error in monkeyd, resulting in a format string
    vulnerability. Ciaran McCreesh of Gentoo Linux discovered a Denial of
    Service vulnerability, a syntax error caused monkeyd to zero out
    unallocated memory should a zero byte file be requested.

    Impact
    ======

    The format string vulnerability could allow an attacker to send a
    specially crafted request to the monkeyd server, resulting in the
    execution of arbitrary code with the permissions of the user running
    monkeyd. The DoS vulnerability could allow an attacker to disrupt the
    operation of the web server, should a zero byte file be accessible.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All monkeyd users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=www-servers/monkeyd-0.9.1"

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

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

      http://security.gentoo.org/glsa/glsa-200504-14.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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