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UNIRAS Brief - 642/03 - Hewlett Packard - HP9000 Series 700/800 running only HP-UX release 11.04 (VVOS) buffer overflow in OpenSSH



 
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   UNIRAS (UK Govt CERT) Briefing Notice - 642/03 dated 26.11.03  Time: 11:29
 UNIRAS is part of NISCC(National Infrastructure Security Co-ordination Centre)
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  UNIRAS material is also available from its website at www.uniras.gov.uk and
         Information about NISCC is available from www.niscc.gov.uk
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Title
=====
HP9000 Series 700/800 running only HP-UX release 11.04 (VVOS) with 
Virtualvault A.04.60 installed - Potential buffer overflow in OpenSSH 
versions prior to 3.7.1.

Detail
====== 

Document ID:  HPSBUX0311-302
Date Loaded:  20031124
      Title:  SSRT3670 VirtualVault OpenSSH vulnerabilities

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 Source: HEWLETT-PACKARD COMPANY
 SECURITY BULLETIN: HPSBUX0311-302
 Originally issued: 24 November 2003
 SSRT3670 VirtualVault OpenSSH vulnerabilities
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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.

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PROBLEM:  Potential buffer overflow in OpenSSH versions prior
          to 3.7.1.

IMPACT:   Potential Denial of Service attack and remote execution
          of arbitrary code.

PLATFORM: HP9000 Series 700/800 running only HP-UX release 11.04
          (VVOS) with Virtualvault A.04.60 installed.

SOLUTION: For Virtualvault release A.04.60 install the following
          patch:

          PHSS_29886  s700_800 11.04 Virtualvault 4.6 SSH update

MANUAL ACTIONS: None

AVAILABILITY:  The patch is available now from <itrc.hp.com>
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 A. Background
    The Common Vulnerabilities and Exposures project has
    identified potential vulnerabilities in the buffer management
    code of OpenSSH versions prior to 3.7.1.  These
    vulnerabilities lead to heap corruption, which could cause
    a denial-of-service condition.  These vulnerabilities affect
    the following HP products:

        HP-UX 11.04, Virtualvault 4.6, running OpenSSH 3.0.2p1

   (Ref. CERT Vulnerability Note VU#333628 and VU#408419)

    http://www.kb.cert.org/vuls/id/333628)
    OpenSSH contains buffer management errors
    More details are available at:
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0693

    http://www.kb.cert.org/vuls/id/408419
    OpenSSH contains an one-off array overflow in channel
            handling code
    More details are available at:
    http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0083

     AFFECTED VERSIONS

     The following is a list by HP-UX revision of
     affected filesets or patches and fix information.
     To determine if a system has an affected version,
     search the output of "swlist -a revision -l fileset"
     for an affected fileset or patch, then determine if
     a fixed revision or applicable patch is installed.

     HP-UX B.11.04
     =============
     VaultTS.VV-OPENSSH
     fix: install PHSS_29886 or subsequent.

     END AFFECTED VERSIONS

   NOTE: This problem does not impact HP NonStop Servers.

         Applying this patch, HP-UX B.11.04 updates ssh
         to OpenSSH 3.6.1p2.  Even though this patch does not
         update to OpenSSH 3.7.1 it nevertheless addresses
         the security issues mentioned above.

 B. Recommended solution

      Download and apply the following patch to the Virtualvault
      release specified using swinstall(1):

           A.04.60                PHSS_29886

 C. To subscribe to automatically receive future NEW HP Security
    Bulletins from the HP IT Resource Center via electronic
    mail, do the following:

    Use your browser to get to the HP IT Resource Center page
    at:

       http://itrc.hp.com

    Use the 'Login' tab at the left side of the screen to login
    using your ID and password.  Use your existing login or the
    "Register" button at the left to create a login, in order to
    gain access to many areas of the ITRC.  Remember to save the
    User ID assigned to you, and your password.

    In the left most frame select "Maintenance and Support".

    Under the "Notifications" section (near the bottom of
    the page), select "Support Information Digests".

    To -subscribe- to future HP Security Bulletins or other
    Technical Digests, click the check box (in the left column)
    for the appropriate digest and then click the "Update
    Subscriptions" button at the bottom of the page.

    or

    To -review- bulletins already released, select the link
    (in the middle column) for the appropriate digest.

    NOTE: Using your itrc account security bulletins can be
          found here:
    http://itrc.hp.com/cki/bin/doc.pl/screen=ckiSecurityBulletin


    To -gain access- to the Security Patch Matrix, select
    the link for "The Security Bulletins Archive".  (near the
    bottom of the page)  Once in the archive the third link is
    to the current Security Patch Matrix. Updated daily, this
    matrix categorizes security patches by platform/OS release,
    and by bulletin topic.  Security Patch Check completely
    automates the process of reviewing the patch matrix for
    11.XX systems.  Please note that installing the patches
    listed in the Security Patch Matrix will completely
    implement a security bulletin _only_ if the MANUAL ACTIONS
    field specifies "No."

    The Security Patch Check tool can verify that a security
    bulletin has been implemented on HP-UX 11.XX systems providing
    that the fix is completely implemented in a patch with no
    manual actions required.  The Security Patch Check tool cannot
    verify fixes implemented via a product upgrade.

    For information on the Security Patch Check tool, see:
    http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
    displayProductInfo.pl?productNumber=B6834AA

    The security patch matrix is also available via anonymous
    ftp:

    ftp://ftp.itrc.hp.com/export/patches/hp-ux_patch_matrix/

    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:

       2D2A7D59
       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@xxxxxxx  Please note that this key is
    for signing bulletins only and is not the key returned
    by sending 'get key' to security-alert@xxxxxxx


 D. To report new security vulnerabilities, send email to

    security-alert@xxxxxx

    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)
    of 'get key' (no quotes) to security-alert@xxxxxxx

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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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UNIRAS wishes to acknowledge the contributions of Hewlett-Packard Company for the 
information contained in this Briefing. 
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This Briefing contains the information released by the original author. Some 
of the information may have changed since it was released. If the vulnerability 
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<End of UNIRAS Briefing>
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