[Full-Disclosure] [ GLSA 200501-46 ] ClamAV: Multiple issues

From: Sune Kloppenborg Jeppesen (jaervosz_at_gentoo.org)
Date: 01/31/05

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    To: gentoo-announce@gentoo.org
Date: Mon, 31 Jan 2005 20:41:44 +0100

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    Gentoo Linux Security Advisory GLSA 200501-46
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                                                http://security.gentoo.org/
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      Severity: Normal
         Title: ClamAV: Multiple issues
          Date: January 31, 2005
          Bugs: #78656, #79194
            ID: 200501-46

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    Synopsis
    ========

    ClamAV contains two vulnerabilities that could lead to Denial of
    Service and evasion of virus scanning.

    Background
    ==========

    ClamAV is an antivirus toolkit. It includes a multi-threaded daemon and
    a command line scanner.

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

        -------------------------------------------------------------------
         Package / Vulnerable / Unaffected
        -------------------------------------------------------------------
      1 app-antivirus/clamav <= 0.80 >= 0.81

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

    ClamAV fails to properly scan ZIP files with special headers
    (CAN-2005-0133) and base64 encoded images in URLs.

    Impact
    ======

    By sending a base64 encoded image file in a URL an attacker could evade
    virus scanning. By sending a specially-crafted ZIP file an attacker
    could cause a Denial of Service by crashing the clamd daemon.

    Workaround
    ==========

    There is no known workaround at this time.

    Resolution
    ==========

    All ClamAV users should upgrade to the latest version:

        # emerge --sync
        # emerge --ask --oneshot --verbose ">=app-antivirus/clamav-0.81"

    References
    ==========

      [ 1 ] CAN-2005-0133
            http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0133
      [ 2 ] ClamAV Release Announcement
            http://sourceforge.net/forum/forum.php?forum_id=440649
      [ 3 ] Secunia SA13900
            http://secunia.com/advisories/13900/

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

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

      http://security.gentoo.org/glsa/glsa-200501-46.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

    _______________________________________________
    Full-Disclosure - We believe in it.
    Charter: http://lists.netsys.com/full-disclosure-charter.html

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