[Full-disclosure] [gentoo-announce] [ GLSA 200503-20 ] curl: NTLM response buffer overflow

From: Sune Kloppenborg Jeppesen (jaervosz_at_gentoo.org)
Date: 03/16/05

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    To: gentoo-announce@robin.gentoo.org
Date: Wed, 16 Mar 2005 17:32:02 +0100

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    Gentoo Linux Security Advisory GLSA 200503-20
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                                                http://security.gentoo.org/
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      Severity: Normal
         Title: curl: NTLM response buffer overflow
          Date: March 16, 2005
          Bugs: #82534
            ID: 200503-20

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    Synopsis
    ========

    curl is vulnerable to a buffer overflow which could lead to the
    execution of arbitrary code.

    Background
    ==========

    curl is a command line tool for transferring files via many different
    protocols.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 net-misc/curl < 7.13.1 >= 7.13.1

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

    curl fails to properly check boundaries when handling NTLM
    authentication.

    Impact
    ======

    With a malicious server an attacker could send a carefully crafted NTLM
    response to a connecting client leading to the execution of arbitrary
    code with the permissions of the user running curl.

    Workaround
    ==========

    Disable NTLM authentication by not using the --anyauth or --ntlm
    options.

    Resolution
    ==========

    All curl users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=net-misc/curl-7.13.1"

    References
    ==========

      [ 1 ] CAN-2005-0490
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0490

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

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

      http://security.gentoo.org/glsa/glsa-200503-20.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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