[ GLSA 200510-05 ] Ruby: Security bypass vulnerability

From: Sune Kloppenborg Jeppesen (jaervosz_at_gentoo.org)
Date: 10/06/05

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    To: gentoo-announce@gentoo.org
    Date: Thu, 6 Oct 2005 16:42:09 +0200
    
    
    

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    Gentoo Linux Security Advisory GLSA 200510-05
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                                                http://security.gentoo.org/
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      Severity: Normal
         Title: Ruby: Security bypass vulnerability
          Date: October 06, 2005
          Bugs: #106996
            ID: 200510-05

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    Synopsis
    ========

    Ruby is vulnerable to a security bypass of the safe level mechanism.

    Background
    ==========

    Ruby is an interpreted scripting language for quick and easy
    object-oriented programming. Ruby supports the safe execution of
    untrusted code using a safe level and taint flag mechanism.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 dev-lang/ruby < 1.8.3 >= 1.8.3

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

    Dr. Yutaka Oiwa discovered that Ruby fails to properly enforce safe
    level protections.

    Impact
    ======

    An attacker could exploit this vulnerability to execute arbitrary code
    beyond the restrictions specified in each safe level.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All Ruby users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=dev-lang/ruby-1.8.3"

    References
    ==========

      [ 1 ] CAN-2005-2337
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2337
      [ 2 ] Ruby release announcement
            http://www.ruby-lang.org/en/20051003.html

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

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

      http://security.gentoo.org/glsa/glsa-200510-05.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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