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             AUSCERT External Security Bulletin Redistribution

    ESB-2004.0037 -- HEWLETT-PACKARD SECURITY BULLETIN: HPSBUX0401-310
           SSRT2341 calloc Miscalculates the Memory Requirements
                              15 January 2004

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:                HP-UX
                        HP Tru64
Publisher:              Hewlett-Packard
Operating System:       HP-UX 11.11
                        HP-UX 11.04
                        HP-UX 11.00
                        HP Tru64 UNIX/Trucluster Server
Platform:               HP9000
Impact:                 Denial of Service

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 Source: HEWLETT-PACKARD COMPANY
 SECURITY BULLETIN: HPSBUX0401-310
 Originally issued: 13 January 2004
 SSRT2341 calloc(3C) in HP-UX
 -----------------------------------------------------------------

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.

 -----------------------------------------------------------------
PROBLEM: calloc miscalculates the memory requirements

IMPACT:  Potential Denial of Service

PLATFORM: HP9000 Servers running B.11.00, B.11.04, B.11.11 only.

SOLUTION: Apply the appropriate patch:
           PHCO_28425 for B.11.00
           PHCO_29190 for B.11.04
           PHCO_28427 for B.11.11

MANUAL ACTIONS: No

AVAILABILITY: All patches are now available from <itrc.hp.com>
 -----------------------------------------------------------------
 A. Background
    RUS-CERT Advisory 2002-08:02: Flaw in calloc and similar
    routines.
    Integer overflow can occur during the computation of the
    memory region size by calloc and similar memory allocation
    functions.  As a result the function returns a buffer which
    is too small, possibly resulting in a subsequent buffer
    overflow.  This affects primarily development environments.

    Reference: <cert.uni-stuttgart.de/advisories/calloc.php>

    This problem also affects HP Tru64 UNIX/Trucluster Server.
    See <http://thenew.hp.com/country/us/eng/support.html>
    Use the SEARCH IN feature box, enter SSRT2341 in the search
    window.

    NOTE: This problem does not impact HP NonStop Servers nor
          HP OpenVMS.


     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.11.00
     =============
     OS-Core.C-MIN
     OS-Core.C-MIN-64ALIB
     OS-Core.CORE-64SLIB
     OS-Core.CORE-SHLIBS
     ProgSupport.PROG-AUX
     ProgSupport.PROG-AX-64ALIB
     ProgSupport.PROG-MIN
     fix: install PHCO_28425 or subsequent


     HP-UX B.11.04
     =============
     OS-Core.C-MIN
     OS-Core.C-MIN-64ALIB
     OS-Core.CORE-64SLIB
     OS-Core.CORE-SHLIBS
     ProgSupport.PROG-AUX
     ProgSupport.PROG-AX-64ALIB
     ProgSupport.PROG-MIN
     fix: install PHCO_29190 or subsequent


     HP-UX B.11.11
     =============
     OS-Core.C-MIN
     OS-Core.C-MIN-64ALIB
     OS-Core.CORE-64SLIB
     OS-Core.CORE-SHLIBS
     ProgSupport.PROG-AUX
     ProgSupport.PROG-AX-64ALIB
     ProgSupport.PROG-MIN
     fix: install PHCO_28427 or subsequent

     END AFFECTED VERSIONS


 B. Recommended solution
    Apply the appropriate patch:

           PHCO_28425 for B.11.00
           PHCO_29190 for B.11.04
           PHCO_28427 for B.11.11

    NOTE:  This issue has been fully resolved in HP-UX B.11.23

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

    Under the "Notifications" section (near the bottom of
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    To -subscribe- to future HP Security Bulletins or other
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    or

    To -review- bulletins already released, select the link
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    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)
       <security-alert@hp.com>
       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
    by sending 'get key' to security-alert@hp.com.


 D. To report new security vulnerabilities, send email to

    security-alert@hp.com

    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@hp.com.

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(c)Copyright 2004 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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