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From: IT Resource Center (support_feedback_at_us-support2-mail.external.hp.com)
Date: Tue Nov 26 2002 - 07:25:13 CST
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Digest Name: daily HP-UX security bulletins digest
Created: Tue Nov 26 6:00:01 EST 2002
Table of Contents:
Document ID Title
--------------- -----------
HPSBUX0209-215 Security Vulnerability in XDR library (rev.2)
The documents are listed below.
-------------------------------------------------------------------------------
Document ID: HPSBUX0209-215
Date Loaded: 20020909
Title: Security Vulnerability in XDR library (rev.2)
TEXT
-----------------------------------------------------------------
**REVISED 02**
Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0209-215
Originally issued: 09 September 2002
Last revised: 26 November 2002
SSRT2336 Security Vulnerability in XDR library
-----------------------------------------------------------------
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: Potential buffer overflow in XDR library.
IMPACT: Potential unauthorized access, denial of service.
**REVISED 02**
-->>PLATFORM: HP 9000 Series 700 and 800 10.20, 10.24, 11.00,
11.04, 11.11, and 11.22
SOLUTION: Until patches are available manually install the
appropriate fixed libraries.
Install PHCO_27882 for 10.24.
MANUAL ACTIONS: Yes - NonUpdate
Install the appropriate fixed libraries.
Install PHCO_27882 for 10.24.
Relink any archived programs that call
xdr_array().
AVAILABILITY: This bulletin will be updated when patches are
available.
CHANGE SUMMARY: Rev.01 - corrected "strings" to "strings -a"
Rev.02 - added 10.24 and 11.04, also added libc.1
for 11.00, 11.11, and 11.22.
------------------------------------------------------------------
A. Background
CERT Advisory CA-2002-25 reports an integer overflow in
certain implementations of XDR libraries. Libraries supplied
-->>with HP-UX 10.20, 10.24, 11,00, 11.04, 11.11, and 11.22 are
potentially vulnerable.
In addition, cross-reference:
HP Tru64 UNIX: Case id: SSRT2309 rpc XDR_ARRAY
A solution is available as noted in the recent
security bulletin SSSRT2275 at
http://thenew.hp.com/country/us/eng/support.html
Use the SEARCH IN feature box, enter SSRT2275 in the
search window.
B. Recommended solution
Until patches are released download and manually install
the appropriate libraries.
Note: It will be necessary to relink any programs that
call xdr_array() and are linked with archived libraries.
There are no known programs supplied by HP which need to
be relinked. To test an archived program:
strings -a suspect_program | grep xdr_array:
If the command above returns "xdr_array: out of memory"
the suspect_program will need to the relinked with a
fixed library.
Download the appropriate files from:
System: hprc.external.hp.com (192.170.19.51)
Login: xdr
Password: xdr1
FTP Access: hprc.external.hp.com/">ftp://xdr:xdr1
hprc.external.hp.com/
or: 192.170.19.51/">ftp://xdr:xdr1192.170.19.51/
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.
The files are:
PHCO_26152.depot.gz
**REVISED 02**
-->> libc.1.gz
-->> libc.1.PHCO_27882.gz
libnsl.1.32_11.00.gz
libnsl.a.32_11.00.gz
libnsl.1.64_11.00.gz
libnsl.a.64_11.00.gz
libnsl.1.32_11.11.gz
libnsl.a.32_11.11.gz
libnsl.1.64_11.11.gz
libnsl.a.64_11.11.gz
libnsl.so.1.32_11.22.IA.gz
libnsl.so.1.64_11.22.IA.gz
The cksum output:
2238979170 9676800 PHCO_26152.depot
-->> 3415580416 1867776 libc.1
-->> 1011129778 1814528 libc.1.PHCO_27882
3064646304 679936 libnsl.1.32_11.00
498505157 817544 libnsl.a.32_11.00
2630827583 648296 libnsl.1.64_11.00
2205456871 1454504 libnsl.a.64_11.00
744618112 724992 libnsl.1.32_11.11
3459917079 783940 libnsl.a.32_11.11
3659675326 702416 libnsl.1.64_11.11
3120598258 1520436 libnsl.a.64_11.11
2227616066 1490048 libnsl.so.1.32_11.22.IA
3162410426 1564768 libnsl.so.1.64_11.22.IA
-->> Note: The patches which supply the libc and libnsl
-->> libraries require that the system be rebooted.
-->> It would be best to carry out the manual
-->> installation below in init state 2 followed
-->> by a reboot. Otherwise programs which were
-->> running when the libraries were changed would
-->> continue to use the old version of the libraries.
Copy the appropriate files to a secure directory,
for example /. Then,
For 10.20
====================================
Install PHCO_26152.depot:
swinstall -x autoreboot=true -x match_target=true \
-s /PHCO_26152.depot
Any applications that use the RPC/XDR APIs in libc.a
must be relinked and restarted.
**REVISED 02**
-->> For 10.24
-->> ====================================
-->> Install PHCO_27882. This patch is available from
-->> the itrc.
**REVISED 02**
For 11.00
====================================
#cd /usr/lib
#cp libnsl.1 libnsl.1.orig
#cp libnsl.a libnsl.a.orig
-->> #cp libc.1 libc.1.orig
#cp /libnsl.1.32_11.00 libnsl.1
#cp /libnsl.a.32_11.00 libnsl.a
-->> #cp /libc.1 libc.1
#chmod 555 libnsl.1
#chmod 444 libnsl.a
-->> #chmod 555 libc.1
#chown bin:bin libnsl.1
#chown bin:bin libnsl.a.
-->> #chown bin:bin libc.1
#cd /usr/lib/pa20_64
#cp libnsl.1 libnsl.1.orig
#cp libnsl.a libnsl.a.orig
#cp /libnsl.1.64_11.00 libnsl.1
#cp /libnsl.a.64_11.00 libnsl.a
#chmod 555 libnsl.1
#chmod 444 libnsl.a
#chown bin:bin libnsl.1
#chown bin:bin 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.
**REVISED 02**
-->> For 11.04
-->> ====================================
-->> #cd /usr/lib
-->> #cp libnsl.1 libnsl.1.orig
-->> #cp libnsl.a libnsl.a.orig
-->> #cp libc.1 libc.1.orig
-->> #cp /libnsl.1.32_11.00 libnsl.1
-->> #cp /libnsl.a.32_11.00 libnsl.a
-->> #cp /libc.1.PHCO_27882 libc.1
-->> #chmod 555 libnsl.1
-->> #chmod 444 libnsl.a
-->> #chmod 555 libc.1
-->> #chown bin:bin libnsl.1
-->> #chown bin:bin libnsl.a.
-->> #chown bin:bin libc.1
-->> #cd /usr/lib/pa20_64
-->> #cp libnsl.1 libnsl.1.orig
-->> #cp libnsl.a libnsl.a.orig
-->> #cp /libnsl.1.64_11.00 libnsl.1
-->> #cp /libnsl.a.64_11.00 libnsl.a
-->> #chmod 555 libnsl.1
-->> #chmod 444 libnsl.a
-->> #chown bin:bin libnsl.1
-->> #chown bin:bin 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.
**REVISED 02**
For 11.11
====================================
#cd /usr/lib
#cp libnsl.1 libnsl.1.orig
#cp libnsl.a libnsl.a.orig
-->> #cp libc.1 libc.1.orig
#cp /libnsl.1.32_11.11 libnsl.1
#cp /libnsl.a.32_11.11 libnsl.a
-->> #cp /libc.1 libc.1
#chmod 555 libnsl.1
#chmod 444 libnsl.a
-->> #chmod 555 libc.1
#chown bin:bin libnsl.1
#chown bin:bin libnsl.a.
-->> #chown bin:bin libc.1
#cd /usr/lib/pa20_64
#cp libnsl.1 libnsl.1.orig
#cp libnsl.a libnsl.a.orig
#cp /libnsl.1.64_11.11 libnsl.1
#cp /libnsl.a.64_11.11 libnsl.a
#chmod 555 libnsl.1
#chmod 444 libnsl.a
#chown bin:bin libnsl.1
#chown bin:bin 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 11.22 IA
====================================
#cd /usr/lib/hpux32
#cp libnsl.so.1 libnsl.so.1.orig
#cp /libnsl.so.1.32_11.22.IA libnsl.so.1
#chmod 555 libnsl.so.1
#chown bin:bin libnsl.so.1
-->> #cd /usr/lib
-->> #cp libc.1 libc.1.orig
-->> #cp /libc.1 libc.1
-->> #chmod 555 libc.1
-->> #chown bin:bin libc.1
#cd /usr/lib/hpux64
#cp libnsl.so.1 libnsl.so.1.orig
#cp libnsl.so.1.64_11.22.IA libnsl.so.1
#chmod 555 libnsl.so.1
#chown bin:bin libnsl.so.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.
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D. To report new security vulnerabilities, send email to
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Please encrypt any exploit information using the
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------------------------------------------------------------------
(c)Copyright 2002 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.
________________________________________________________________
-----End of Document ID: HPSBUX0209-215--------------------------------------
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