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Gentoo Linux Security Advisory                           GLSA 200606-26
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: EnergyMech: Denial of Service
      Date: June 26, 2006
      Bugs: #132749
        ID: 200606-26

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Synopsis
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A Denial of Service vulnerability was discovered in EnergyMech that is
easily exploitable via IRC.

Background
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EnergyMech is an IRC bot programmed in C.

Affected packages
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    -------------------------------------------------------------------
     Package        /  Vulnerable  /                        Unaffected
    -------------------------------------------------------------------
  1  net-irc/emech       < 3.0.2                              >=3D 3.0.2

Description
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A bug in EnergyMech fails to handle empty CTCP NOTICEs correctly, and
will cause a crash from a segmentation fault.

Impact
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By sending an empty CTCP NOTICE, a remote attacker could exploit this
vulnerability to cause a Denial of Service.

Workaround
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There is no known workaround at this time.

Resolution
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All EnergyMech users should update to the latest stable version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=3Dnet-irc/emech-3.0.2"

References
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  [ 1 ] EnergyMech Changelog
        http://www.energymech.net/versions-3.0.html

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

  http://security.gentoo.org/glsa/glsa-200606-26.xml

Concerns?
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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
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Copyright 2006 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/2.5