AUSCERT External Security Bulletin Redistribution

                    Security Vulnerabilities in OpenSSL
                                19 May 2003


        AusCERT Security Bulletin Summary

Product:                OpenSSL
Publisher:              Hewlett-Packard
Operating System:       HP-UX 11.22
                        HP-UX 11.11
                        HP-UX 11.00
Impact:                 Access Confidential Data
Access Required:        Remote
CVE Names:              CAN-2003-0131, CAN-2003-0147

Ref:                    ESB-2003.0324

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Hash: SHA1

** REVISED 01 **
Originally issued: 24 April 2003
Last revised: 12 May 2003
SSRT3499 SSRT3518 Security Vulnerabilities in OpenSSL
NOTICE: There are no restrictions for distribution of this
Bulletin provided that it remains complete and intact.

The information in the following Security Bulletin should be
acted upon as soon as possible.  Hewlett-Packard Company will
not be liable for any consequences to any customer resulting
from customer's failure to fully implement instructions in this
Security Bulletin as soon as possible.

  1. OpenSSL does not use RSA blinding by default, which allows
     local and remote attSecurity Vulnerabilities in OpenSSLackers to obtain the server's private
     key by determining factors using timing differences on (1)
     the number of extra reductions during Montgomery reduction,
     and (2) the use of different integer multiplication

     More details are available at:

     The problem has been fixed by enabling the blinding flag for
     the RSA crypto algothrithms in HP-UX implementations.

  2. The SSL and TLS components for OpenSSL 0.9.6i and earlier,
     allow remote attackers to perform an unauthorized RSA private
     key operation via a modified Bleichenbacher attack.  This
     attack uses a large number of SSL or TLS connections using
     PKCS #1 v1.5 padding that causes OpenSSL to leak information.

            More details are available at:

IMPACT: Potential information leak.

** REVISED 01 **
PLATFORM: HP9000 Servers running HP-UX release 11.00, 11.11 and
          11.22 with versions of the following products are
          affected, and represented as:
               product-name, version (product-tag/bundle-tag)

  --->  - hp apache-based web server, or earlier
  --->    (ApacheStrong/B9415AA)
  --->    This product includes OpenSSL 0.9.6i

        - hp apache-based web server, or earlier
          (HPApache/B9416AA, HPApache/B9416BA)
          This product includes OpenSSL 0.9.6g

        - hp-ux apache-based web server, v. or earlier
          This product includes OpenSSL 0.9.6i.

** REVISED 01 **
SOLUTION: For HP-UX releases 11.00, 11.11 and 11.22 download new
          HP Apache product from http://www.software.hp.com/:

  --->    For ApacheStrong/B9415AA download the following:
  --->    - hp apache-based web server,
  --->      (ApacheStrong/B9415AA)
  --->      This product includes OpenSSL 0.9.6i (with patches)
  --->  http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/
  --->    cgi/displayProductInfo.pl?productNumber=B9415AA132702

          For HPApache/B9416AA, HPApache/B9416BA and
              hpuxwsAPACHE/hpuxwsApache download the following:
          - hp-ux apache-based web server, v. or later
            This product includes OpenSSL 0.9.6i (with patches)

  NOTE: No IPv6 solution is available at this time.  This Security
        Bulletin will be updated when such becomes available.

                Install the product containing the fix.
                For customers with HPApache/B9416AA or
                HPApache/B9416BA installed, the fix requires
                migration to hpuxwsAPACHE/hpuxwsApache and
                removing the affected products from the system.

AVAILABILITY: Complete product bundles are available now on

CHANGE SUMMARY:  Rev. 01 Added apache-based web server,
** REVISED 01 **
A. Background
   The Common Vulnerabilities and Exposures project
   <http://cve.mitre.org/> has identified multiple potential
   vulnerabilities in the OpenSSL (CAN-2003-0131, CAN-2003-0147).
   It affects the following HP product numbers/versions on HP-UX
   releases 11.00, 11.11 and 11.22:

 ---> - hp apache-based web server, or earlier
 --->   (ApacheStrong/B9415AA)

      - hp apache-based web server, or earlier
        (HPApache/B9416AA, HPApache/B9416BA)

      - hp-ux apache-based web server, v. or earlier

B. Recommended solution
   The OpenSSL Group has released different patches to
   OpenSSL 0.9.6i to fix the problems identified in the above
   mentioned issues.

** REVISED 01 **
   For customers using ApacheStrong/B9415AA, HP has incorporated
   OpenSSL 0.9.6i (with patches) in the following product:
    - B9415AA:       hp apache-based web server

   For customers using HPApache/B9416AA, HPApache/B9416BA and
   hpuxwsAPACHE/hpuxwsApache, HP has incorporated OpenSSL 0.9.6i
   (with patches) in the following product:
   - hp-ux apache-based web server v. or later

   NOTE: No IPv6 solution is available at this time.  This
         Security Bulletin will be updated when such becomes

** REVISED 01 **
   Check for Apache Installation
   To determine if the Apache web server from HP is installed on
   your system, use Software Distributor's swlist command.  All
   three versions products may co-exist on a single system.

   For example, the results of the command
     swlist -l product | grep -i apache

 --> ApacheStrong     HP Apache-based Web Server
 -->                             with Strong (128bit) Encryption
     HPApache  HP Apache-based Web Server
     hpuxwsAPACHE  A.   HP-UX Apache-based Web Server

   Stop Apache
   Before updating, make sure to stop any previous Apache binary.
   Otherwise, the previous binary will continue running,
   preventing the new one from starting, although the installation
   would be successful.

   After determining which Apache is installed, stop Apache with
   the following commands:

 --> for ApacheStrong:    /opt/apache/bin/apachectl stop
     for HPApache:        /opt/hpapache2/bin/apachectl stop
     for hpuxwsAPACHE:    /opt/hpws/apache/bin/apachectl stop

   Download and Install Apache
   - Download Apache from Software Depot using the previously
     mentioned links.
   - Verify successful download by comparing the cksum with the
     value specified on the installation web page.
   - Use SD to swinstall the depot.
   - For customers with HPApache/B9416AA or HPApache/B9416BA
     installed, migrate to hpuxwsAPACHE/hpuxwsApache and
     remove the affected products from the system.

   Installation of this new version of HP Apache over an existing
   HP Apache installation is supported, while installation over a
   non-HP Apache is NOT supported.

   Removing Apache Installation
   If you rather remove Apache from your system than install a
   newer version to resolve the security problem, use both
   Software Distributor's "swremove" command and also "rm -rf"
   the home location as specified in the rc.config.d file "HOME"

   To find the files containing HOME variables in the
   /etc/rc.config.d directory:

     %ls /etc/rc.config.d | grep apache

C. To subscribe to automatically receive future NEW HP Security
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   For information on the Security Patch Check tool, see:

   The security patch matrix is also available via anonymous


   On the "Support Information Digest Main" page:
   click on the "HP Security Bulletin Archive".

   The PGP key used to sign this bulletin is available from
   several PGP Public Key servers.  The key identification
   information is:

      HP Security Response Team (Security Bulletin signing only)
      Fingerprint =
        6002 6019 BFC1 BC62 F079 862E E01F 3AFC 2D2A 7D59

   If you have problems locating the key please write to
   security-alert@hp.com.  Please note that this key is
   for signing bulletins only and is not the key returned
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D. To report new security vulnerabilities, send email to


   Please encrypt any exploit information using the
   security-alert PGP key, available from your local key
   server, or by sending a message with a -subject- (not body)
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(c)Copyright 2003 Hewlett-Packard Company
Hewlett-Packard Company shall not be liable for technical or
editorial errors or omissions contained herein. The information
in this document is subject to change without notice.
Hewlett-Packard Company and the names of HP products referenced
herein are trademarks and/or service marks of Hewlett-Packard
Company.  Other product and company names mentioned herein may be
trademarks and/or service marks of their respective owners.

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