AUSCERT External Security Bulletin Redistribution

                  Potential libc Security Vulnerabilities
                               02 April 2003


        AusCERT Security Bulletin Summary

Product:                libc
Vendor:                 Hewlett-Packard
Operating System:       HP-UX
                        Tru64 UNIX
Impact:                 Root Compromise
                        Denial of Service
Access Required:        Remote
CVE Names:              CAN-2003-0028

Ref:                    AL-2003.03

Comment: The PGP signature for the HP bulletin is bad, however AusCERT
         have independantly verified the contents as being valid.

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Hash: SHA1


SSRT2322 SSRT2341 SSRT2384 SSRT2412 SSRT2439
HP Tru64 UNIX, HP-UX, Potential libc Security Vulnerabilities

NOTICE: There are no restrictions for distribution of this Bulletin
provided that it remains complete and intact.

RELEASE DATE:  1 April 2003


                   Software Security Response Team

SSRT2322, SSRT2341, SSRT2384, SSRT2412,
SSRT2439, SSRT2316, HPSBUX0208-209, HPSBUX0303-252,
VU#516825, VU#738331, VU#266817


This bulletin will be posted to the support website within 24 hours
of release to - http://thenew.hp.com/country/us/eng/support.html
Use the SEARCH IN feature box, enter SSRT2322 in the search

  Severity (HIGH) on all the following potential vulnerabilities:

    SSRT2322 Potential Bind resolver exploit

    SSRT2341 calloc() potential overflow

    SSRT2384 TCP exploit denies all RPC service

    SSRT2412 portmapper hang after port scan with C2 enabled

    SSRT2439 xdrmem_getbytes() potential overflow 

Potential security vulnerabilities have been identified or reported
in the HP-UX and HP Tru64 UNIX operating systems that may
result in unauthorized Privileged Access or a Denial of Service
(DoS).  These potential vulnerabilities may be in the form of
Local and Remote security domain risks.


  HP-UX release 11.22 

  HP-UX release 11.11 (11i)

  HP-UX release 11.04 (VVOS)

  HP-UX release 11.00

  HP-UX release 10.20

  HP-UX release 10.10

  HP Tru64 UNIX V5.1B 

 HP Tru64 UNIX V5.1A 

  HP Tru64 UNIX V5.1 

  HP Tru64 UNIX V5.0A 

  HP Tru64 UNIX V4.0G 

  HP Tru64 UNIX V4.0F



  HP OpenVMS

  HP NonStop Servers



    SSRT2322 Potential Bind resolver exploit

    HP has provided notice of the availability of any necessary
    solutions through the standard Security Bulletin
    HPSBUX0303-209 announcement and is available from
    your normal HP Services support channel and will be
    available from http://itrc.hp.com search for

 SSRT2341 calloc() potential overflow

 SSRT2384 TCP exploit denies all RPC service

 SSRT2412 portmapper hang after port scan with C2 enabled

 SSRT2341, SSRT2384, SSRT2412:

As further information becomes available HP
will provide notice of the availability of any
necessary patches through standard security
bulletin announcements and be available from your
normal HP Services support channel.

  SSRT2439  xdrmem_getbytes() potential overflow

HP has provided notice of the availability of any necessary solutions
through the standard Security Bulletin HPSBUX0303-252
announcement and is available from your normal HP Services
support channel and will be available from http://itrc.hp.com
search for HPSBUX0303-252


   SSRT2322 Potential Bind resolver exploit

   SSRT2341 calloc() potential overflow

   SSRT2384 TCP exploit denies all RPC service

   SSRT2412 portmapper hang after port scan with C2 enabled

   SSRT2439 xdrmem_getbytes() potential overflow

Special Notes - Please Read 

To obtain the corrections for the following affected version,  please
reference the updated Security Bulletin (SRB) for the SSRT2275
Potential Buffer Overflows Vulnerability which issues a 5.1 PK6(BL20)
patchkit containing the corrections listed in this EA. See Security
Bulletin SSRT2275 for details.

HP Tru64 UNIX 5.1    PK6 (BL20) 

For the versions listed below, the corrections provided in this
advisory DO intersect with previous Early Release Patch Kit (ERP)
corrections provided for the SSRT2275- Potential Buffer Overflows

Please note that ONLY the intersecting files that affect libc have
been merged with the previous SSRT2275- Potential Buffer
Overflows Vulnerability patch kits for these versions as indicated.

HP Tru64 UNIX 5.0A  PK3 (BL17) 

HP Tru64 UNIX 4.0F  PK7 (BL18) 

HP Tru64 UNIX 4.0G  PK3 (BL17)

These patches can be installed on top of the SSRT2275- Potential
Buffer Overflows Vulnerability patchkit or standalone. However, in
order to get the complete set of fixes included in the SSRT2275 -
Potential Buffer Overflows Vulnerability , the appropriate SSRT2275
 Potential Buffer Overflows Vulnerability patch kit must be installed
before installing this patch kit.

Please refer to the following web site for more details regarding
the SSRT2275 Potential Buffer Overflows Vulnerability:


For the following versions, the corrections provided in SSRT2275
and SSRT2322 are included in the aggregate patch BL kits.
Therefore, the patch kits listed in this Security Bulletin DO NOT
have file intersections with other available Early Release Patch
(ERP) kits.

HP Tru64 UNIX 5.1B PK1 (BL1) 

HP Tru64 UNIX 5.1A PK4 (BL21)

Please review the README file for each patch prior to installation.

Early Release Patch Kits

Early Release Patches (ERPs) are now available for all supported
versions of HP Tru64 UNIX. The ERP kits use dupatch to install and
will not install over any Customer Specific Patches (CSPs) which
have file intersections with the ERPs.  Contact your normal support
channel and request HP Tru64 services elevate a case to Support
Engineering if a CSP must be merged with one of the ERPs.

Important Post-Installation Information 

These patches deliver updated static libraries. Customers who have
applications that build against the affected static libraries should
relink those applications post-ERP installation. The following static
libraries are updated if the applicable static library subsets are
installed on the system being patched:

/usr/ccs/lib/libc.a    OSFCMPLRS
/usr/ccs/lib/libc_r.a OSFCMPLRS

HP Tru64 UNIX/TruCluster Server 5.1B
PREREQUISITE: V5.1B PK1 (BL1) installed
ERP Kit Name: T64V51BB1-C0006700-17362-ES-20030313.tar
Kit Location: ftp://ftp1.support.compaq.com/public/unix/v5.1b/

HP Tru64 UNIX/TruCluster Server 5.1A
PREREQUISITE: V5.1A PK4 (BL21) installed
ERP Kit Name: T64V51AB21-C0108400-17361-ES-20030313.tar
Kit Location: ftp://ftp1.support.compaq.com/public/unix/v5.1a/

HP Tru64 UNIX/TruCluster Server 5.1
PREREQUISITE: V5.1 with PK6 (BL20) installed
ERP Kit Name: T64V51B20-C0173100-17539-ES-20030324.tar
Kit Location: ftp://ftp1.support.compaq.com/public/unix/v5.1/  
    Please Note:   This kit contains additional corrections for
   SSRT2275 Potential Buffer Overflow Vulnerability. Please see
   Special Notes in the this resolution section for details.

HP Tru64 UNIX/TruCluster Server 5.0A PK3 (BL17)
Please contact your normal HP Services Support channel and elevate an
IPMT to obtain a kit for V5.0A PK3

HP Tru64 UNIX/TruCluster Server 4.0G
PREREQUISITE: V4.0G PK3 (BL17) installed
ERP Kit Name: T64V40GB17-C0028702-17604-ES-20030327.tar   
Kit Location: ftp://ftp1.support.compaq.com/public/unix/v4.0g/

HP Tru64 UNIX/TruCluster Server 4.0F
PREREQUISITE:  V4.0F PK7 (BL18) installed
ERP Kit Name: DUV40FB18-C0092704-17536-ES-20030324.tar
Kit Location: ftp://ftp1.support.compaq.com/public/unix/v4.0f/ 

Patch Kits for Sierra Clusters (SC) can be obtained by contacting
your normal HP Services SC Support channels.

The fixes contained in the ERP kits will be available in the
following mainstream patch kits:  

HP Tru64 UNIX 5.1B   PK2

HP Tru64 UNIX 5.1A   PK5

HP Tru64 UNIX 4.0G   PK4

HP Tru64 UNIX 4.0F   PK8

MD5 and SHA1 checksums are available in the public patch notice
for the ERP kits. You can find information on how to verify MD5 and
SHA1 checksums at:

After completing the update, HP and Compaq strongly recommend
that you perform an immediate backup of  the system disk so that any
subsequent restore operationsbegin with updated software. Otherwise,
the updates must be re-applied after a future restore operation. 
Also, if at some future time the system is upgraded to a later patch
release or version release,  reinstall the appropriate ERP.

SUPPORT: For further information, contact HP Services. 
SUBSCRIBE: To subscribe to automatically receive future Security
Advisories from the Software Security Response Team via electronic
mail:  http://www.support.compaq.com/patches/mail-list.shtml

REPORT: To report a potential security vulnerability with any HP
supported product, send email to: security-alert@hp.com

As always, HP urges you to periodically review your system management
and security procedures. HP will continue to review and enhance the
security features of its products and work with our customers to
maintain and improve the security and integrity of their systems.

"HP is broadly distributing this Security Bulletin in order to bring
to the attention of users of the affected HP products the important
security information contained in this Bulletin. HP recommends that
all users determine the applicability of this information to their
individual situations and take appropriate action. HP does not
warrant that this information is necessarily accurate or complete
for all user situations and, consequently, HP will not be responsible
for any damages resulting from user's use or
disregard of the information provided in this Bulletin."

(c)Copyright 2001, 2003 Hewlett-Packard Development Company, L.P. 
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 Hewlett-Packard products referenced
herein are trademarks of Hewlett-Packard Company in the United
States and other countries. Other product and company names
mentioned herein may be trademarks of their respective owners.

Version: PGP 7.0.1


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