[Full-Disclosure] [ GLSA 200501-40 ] ngIRCd: Buffer overflow

From: Thierry Carrez (koon_at_gentoo.org)
Date: 01/28/05

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To: gentoo-announce@lists.gentoo.org

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    Gentoo Linux Security Advisory GLSA 200501-40
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                                                http://security.gentoo.org/
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      Severity: High
         Title: ngIRCd: Buffer overflow
          Date: January 28, 2005
          Bugs: #79705
            ID: 200501-40

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    Synopsis
    ========

    ngIRCd is vulnerable to a buffer overflow that can be used to crash the
    daemon and possibly execute arbitrary code.

    Background
    ==========

    ngIRCd is a free open source daemon for Internet Relay Chat (IRC).

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 net-irc/ngircd < 0.8.2 >= 0.8.2

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

    Florian Westphal discovered a buffer overflow caused by an integer
    underflow in the Lists_MakeMask() function of lists.c.

    Impact
    ======

    A remote attacker can exploit this buffer overflow to crash the ngIRCd
    daemon and possibly execute arbitrary code with the rights of the
    ngIRCd daemon process.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All ngIRCd users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=net-irc/ngIRCd-0.8.2"

    References
    ==========

      [ 1 ] ngIRCd Release Annoucement
            http://arthur.ath.cx/pipermail/ngircd-ml/2005-January/000228.html

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

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

      http://security.gentoo.org/glsa/glsa-200501-40.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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    Relevant Pages

    • [Full-Disclosure] [gentoo-announce] [ GLSA 200501-40 ] ngIRCd: Buffer overflow
      ... ngIRCd is a free open source daemon for Internet Relay Chat. ... Florian Westphal discovered a buffer overflow caused by an integer ... Security is a primary focus of Gentoo Linux and ensuring the ...
      (Full-Disclosure)
    • [ GLSA 200501-40 ] ngIRCd: Buffer overflow
      ... ngIRCd is a free open source daemon for Internet Relay Chat. ... Florian Westphal discovered a buffer overflow caused by an integer ... Security is a primary focus of Gentoo Linux and ensuring the ...
      (Full-Disclosure)
    • [ GLSA 200501-40 ] ngIRCd: Buffer overflow
      ... ngIRCd is a free open source daemon for Internet Relay Chat. ... Florian Westphal discovered a buffer overflow caused by an integer ... Security is a primary focus of Gentoo Linux and ensuring the ...
      (Bugtraq)