[ESA-20030930-027] OpenSSL ASN.1 parsing vulnerabilities.

From: EnGarde Secure Linux (security_at_guardiandigital.com)
Date: 09/30/03

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    Date: Tue, 30 Sep 2003 13:22:10 -0400 (EDT)
To: engarde-security@guardiandigital.com, bugtraq@securityfocus.com

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    +------------------------------------------------------------------------+
    | Guardian Digital Security Advisory September 30, 2003 |
    | http://www.guardiandigital.com ESA-20030930-027 |
    | |
    | Packages: openssl, openssl-misc |
    | Summary: ASN.1 parsing vulnerabilities. |
    +------------------------------------------------------------------------+

      EnGarde Secure Linux is an enterprise class Linux platform engineered
      to enable corporations to quickly and cost-effectively build a complete
      and secure Internet presence while preventing Internet threats.

    OVERVIEW
    - --------
      An SSL/TLS testing suite developed by the NISCC (UK National
      Infrastructure Security Co-Ordination Centre) uncovered ASN.1 parsing
      vulnerabilities in OpenSSL. Exploitation of these vulnerabilities may
      result in a denial of service.

      More information on these vulnerabilities may be found at the following
      URLs:

        http://www.uniras.gov.uk/vuls/2003/006489/tls.htm
        http://www.uniras.gov.uk/vuls/2003/006489/openssl.htm
        http://www.openssl.org/news/secadv_20030930.txt

      The Common Vulnerabilities and Exposures project (cve.mitre.org) has
      assigned the names CAN-2003-0543 and CAN-2003-0544 to these issues.

      Guardian Digital products affected by this issue include:

        EnGarde Secure Community v1.0.1
        EnGarde Secure Community 2
        EnGarde Secure Professional v1.1
        EnGarde Secure Professional v1.2
        EnGarde Secure Professional v1.5

      It is recommended that all users apply this update as soon as possible.

    SOLUTION
    - --------
      Guardian Digital Secure Network subscribers may automatically update
      affected systems by accessing their account from within the Guardian
      Digital WebTool.

      To modify your GDSN account and contact preferences, please go to:

        https://www.guardiandigital.com/account/

      Below are MD5 sums for the updated EnGarde Secure Linux 1.0.1 packages:

        SRPMS/openssl-0.9.6-1.0.20.src.rpm
          MD5 Sum: 5d1934b9bcd268d94f8ac8b99d1d5706

        i386/openssl-0.9.6-1.0.20.i386.rpm
          MD5 Sum: 4bb12e405b0263e6c7be9b3c78b3790a

        i386/openssl-misc-0.9.6-1.0.20.i386.rpm
          MD5 Sum: 56dbd3b4ad1003700b24812b9b2862c4

        i686/openssl-0.9.6-1.0.20.i686.rpm
          MD5 Sum: 4facceca8713e17657595f3f4eb6b406

        i686/openssl-misc-0.9.6-1.0.20.i686.rpm
          MD5 Sum: bd2a0d8dcd4e23127d3d388bf8c18b35

    REFERENCES
    - ----------
      Guardian Digital's public key:
        http://ftp.engardelinux.org/pub/engarde/ENGARDE-GPG-KEY

      OpenSSL's Official Web Site:
        http://www.openssl.org/

      Guardian Digital Advisories:
        http://infocenter.guardiandigital.com/advisories/

      Security Contact: security@guardiandigital.com

    - --------------------------------------------------------------------------
    Author: Ryan W. Maple <ryan@guardiandigital.com>
    Copyright 2003, Guardian Digital, Inc.

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