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**REVISED 10**
Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0303-252
Originally issued: 19 March 2003
Last revised: 11 January 2004
SSRT2439 Rev.10 xdrmem_getbytes()
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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 xdrmem_getbytes() and
related functions.

IMPACT: Potential unauthorized access, denial of service.

PLATFORM: HP-UX B.10.20, B.11.00, B.11.04, B.11.11, and B.11.22

SOLUTION: Install the appropriate patches.

B.10.20 - PHCO_26158
B.11.00 - PHNE_28982
B.11.00 - PHCO_28480
B.11.11 - PHNE_28983
B.11.11 - PHCO_28481
--> B.11.22 - PHNE_29449

MANUAL ACTIONS: Yes - NonUpdate
B.11.04, B.11.22:
Download and install the appropriate files.

AVAILABILITY: Patches are available now for all except B.11.04
and B.11.22 (libc.1).

CHANGE SUMMARY: Rev.01 - Corrected instructions for replacing
libc.1 on 11.00 and 11.11.
Added CERT CA-2003-10 reference.
Rev.02 - Corrected instructions 10.20
Rev.03 - Patches are available for 11.00 and 11.11
libc.1 must still be manually installed
for 11.00 and 11.11
Rev.04 - Corrected 11.00 and 11.11 patch
information.
Rev.05 - Added note about general release patches
Rev.06 - Added PHCO_26158.
Added AFFECTED VERSIONS section.
Rev.07 - Added PHCO_28982 and PHCO_28983.
Rev.08 - Corrected patch names.
PHCO_28982 should be PHNE_28982.
PHCO_28983 should be PHNE_28983.
Rev.09 - Added PHCO_28480 and PHCO_28481.
Rev.10 - Added PHNE_29449.
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A. Background

There are potential buffer overflows in
xdrmem_getbytes() and related functions.

This issue has been reported by CERT/CC in
advisory CA-2003-10.

HP Tru64 UNIX/TruCluster Servers:
The following potential security vulnerability has been
identified or reported in the HP Tru64 UNIX operating system
that may result in unauthorized Privileged Access or a
Denial of Service (DoS).
This potential vulnerability may be in the form of Local
and Remote security domain risks.

Cross reference: SSRT2322, SSRT2384, SSRT2341,
SSRT2439, SSRT2412

Not Impacted:

HP NonStop Servers
HP OpenVMS

**REVISED 10**
AFFECTED VERSIONS

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


HP-UX B.11.22
=============
NFS.NFS-64SLIB
NFS.NFS-SHLIBS
--> fix: PHNE_29449 or subsequent
OS-Core.CORE2-SHLIBS
fix: libc.1

HP-UX B.11.11
=============
NFS.NFS-64SLIB
NFS.NFS-SHLIBS
fix: PHNE_28983 or subsequent
OS-Core.CORE-SHLIBS
fix: PHCO_28481 or subsequent

HP-UX B.11.04
=============
NFS.NFS-64SLIB
fix: libnsl.1.64_11.00, libnsl.a.64_11.00
NFS.NFS-SHLIBS
fix: libnsl.1.32_11.00, libnsl.a.32_11.00
OS-Core.CORE-SHLIBS
fix: libc.1

HP-UX B.11.00
=============
NFS.NFS-64SLIB
NFS.NFS-SHLIBS
fix: PHNE_28982 or subsequent
OS-Core.CORE-SHLIBS
fix: PHCO_28480 or subsequent

HP-UX B.10.20
=============
OS-Core.CORE-SHLIBS
fix: PHCO_26158 or subsequent

END AFFECTED VERSIONS



B. Recommended solution

**REVISED 10**
Note: If the preliminary patches, PHNE_28929.depot or
PHNE_28930.depot have been installed, they must
be removed with swremove before installing the
general release patches PHNE_28982 (11.00) or
PHNE_28983 (11.11) or subsequent.

Remove the preliminary patches with swremove
if they are on the system:

PHNE_28929.depot #B.11.00
PHNE_28930.depot #B.11.11


Install the appropriate patches.

B.10.20 - PHCO_26158
B.11.00 - PHNE_28982
B.11.00 - PHCO_28480
B.11.11 - PHNE_28983
B.11.11 - PHCO_28481
--> B.11.22 - PHNE_29449

--> In addition download and install the appropriate
--> library files for B.11.04 and B.11.22 as described
--> below.

System: hprc.external.hp.com (192.170.19.51)
Login: xdr2
Password: xdr2

Browser ftp access:

ftp://xdr2:xdr2@hprc.external.hp.com/
or
ftp://xdr2:xdr2@192.170.19.51/


Note: There is an ftp defect in IE5 that may result in
a browser hang. To work around this:
Select Tools -> Internet Options -> Advanced
Un-check the option: [ ] Enable folder view for FTP sites

If you wish to verify the md5 sum please refer to:

HPSBUX9408-016
Patch sums and the MD5 program

Download the appropriate files and unpack with gunzip:

libc.1.gz # B.11.04, B.11.22
libnsl.1.32_11.00.gz # B.11.04
libnsl.a.32_11.00.gz # B.11.04
libnsl.1.64_11.00.gz # B.11.04
libnsl.a.64_11.00.gz # B.11.04

Verify the cksum or md5.

If you wish to verify the md5 sum please refer to:

HPSBUX9408-016
Patch sums and the MD5 program

cksum:
3108550729 1867776 libc.1
2543748420 679936 libnsl.1.32_11.00
3883898582 652664 libnsl.1.64_11.00
2393869471 818268 libnsl.a.32_11.00
205723668 1456024 libnsl.a.64_11.00

MD5 (libc.1) = 118ce482dbb3982b7484ddc434d77a51
MD5 (libnsl.1.32_11.00) = a6bbfcae4a7044b0d1e9aece871c126e
MD5 (libnsl.1.64_11.00) = b3c76866d75a4216be7787f219c051df
MD5 (libnsl.a.32_11.00) = 1c0aea725173673eb1c8e9410180096c
MD5 (libnsl.a.64_11.00) = 06c8fd367c7620a017e9bb2e7df3ec7d

For B.11.04
====================================
#DIR=[path to new files]
#cd /usr/lib

#cp $DIR/libnsl.1.32_11.00 libnsl.1.new
#cp $DIR/libnsl.a.32_11.00 libnsl.a.new
#cp $DIR/libc.1 libc.1.new

#chmod 555 libnsl.1.new
#chmod 444 libnsl.a.new
#chmod 555 libc.1.new

#chown bin:bin libnsl.1.new
#chown bin:bin libnsl.a.new
#chown bin:bin libc.1.new

#mv libnsl.1 libnsl.1.orig
#mv libnsl.a libnsl.a.orig
#mv libc.1 libc.1.orig

#mv libnsl.1.new libnsl.1
#mv libnsl.a.new libnsl.a
#mv libc.1.new libc.1

#cd /usr/lib/pa20_64

#cp $DIR/libnsl.1.64_11.00 libnsl.1.new
#cp $DIR/libnsl.a.64_11.00 libnsl.a.new

#chmod 555 libnsl.1.new
#chmod 444 libnsl.a.new

#chown bin:bin libnsl.1.new
#chown bin:bin libnsl.a.new

#mv libnsl.1 libnsl.1.orig
#mv libnsl.a libnsl.a.orig

#mv libnsl.1.new libnsl.1
#mv libnsl.a.new libnsl.a

After this, any applications that use libnsl.1 must be
restarted. Any applications that use libnsl.a must
be relinked and restarted.
Any applications that use libc.1 must be restarted.

Rebooting is the recommended way to restart the applications
using libnsl.1 or libc.1.

For B.11.22
====================================
--> Install PHNE_29449 or subsequent and:

#DIR=[path to new files]
#cd /usr/lib
#cp $DIR/libc.1 libc.1.new
#chmod 555 libc.1.new
#chown bin:bin libc.1.new
#mv libc.1 libc.1.orig
#mv libc.1.new libc.1

After this, any applications that use libnsl.so.1 must be
restarted.

Rebooting is the recommended way to restart the applications
using libnsl.1 or libc.1.


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/sc...curityBulletin


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/s...arser.cgi/cgi/
displayProductInfo.pl?productNumber=B6834AA

The security patch matrix is also available via anonymous
ftp:

ftp://ftp.itrc.hp.com/export/patches..._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
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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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--
Yours truly,
HP S/W Security Team
WTEC Cupertino, California


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