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[HP-UX] Update zu HPSBUX0303-252 (xdrmem_getbytes)
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Liebe Kolleginnen und Kollegen,
soeben erreichte uns das nachfolgende Bulletin der HP SupportLine.
Wir geben diese Informationen unveraendert an Sie weiter.
HPSBUX0303-252 SSRT2439 Schwachstelle in xdrmem_getbytes()
Rev 4: Die Informationen zu den Patches fuer HP-UX 11.00 und 11.11
sind korrigiert worden.
Zur Erinnerung:
Die Sun RPC XDR Bibliotheken stellen plattformunabhaengige
Datenformate zur Verfuegung, die beispielsweise in Remote Procedure
Calls (RPC) verwendet werden.
In der Funktion xdrmem_getbytes() kann eine Wertebereichs-
ueberschreitung einer Variablen (Integer Overflow) ausgeloest
werden. In Abhaengigkeit von der Verwendung dieser Funktion sind
Buffer Overflows in den aufrufenden Funktionen die Folge. Die
Ausnutzbarkeit dieser Schwachstelle ist damit von der Verwendung
dieser Funktion und der Speicherverwaltung des Systems abhaengig.
(c) der deutschen Zusammenfassung bei DFN-CERT GmbH; die Verbreitung,
auch auszugsweise, ist nur unter Hinweis auf den Urheber, DFN-CERT
GmbH, und nur zu nicht kommerziellen Zwecken gestattet.
Mit freundlichen Gruessen,
Jan Kohlrausch
- --
Jan Kohlrausch | mailto:kohlrausch@xxxxxxxxxxx
DFN-CERT GmbH | http://www.cert.dfn.de/team/kohlrausch/
Heidenkanpsweg 41 | Phone: +49(40) 808077 555
D-20097 Hamburg | FAX: +49(40) 808077 556
Germany | PGP-KeyID: 0xA5DD03D1
PGP-Key Fingerprint: A255 1C51 0A30 3E78 5B40 DAB7 14F7 C9E8
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Digest Name: daily HP-UX security bulletins digest
Created: Thu May 22 7:00:02 EDT 2003
Table of Contents:
Document ID Title
- --------------- -----------
HPSBUX0303-252 SSRT2439 Potential Security Vulnerability in xdrmem_getbytes()
The documents are listed below.
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Document ID: HPSBUX0303-252
Date Loaded: 20030521
Title: SSRT2439 Potential Security Vulnerability in xdrmem_getbytes() (rev.4)
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Hash: SHA1
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**REVISED 04**
Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0303-252
Originally issued: 19 March 2003
Last revised: 21 May 2003
SSRT2439 Potential Security Vulnerability in xdrmem_getbytes()
(rev.4)
-----------------------------------------------------------------
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: Potental buffer overflow in xdrmem_getbytes() and
related functions.
IMPACT: Potential unauthorized access, denial of service.
PLATFORM: HP 9000 Series 700 and 800 10.20, 11.00, 11.04, 11.11,
and 11.22
**REVISED 04**
SOLUTION: Until patches are available manually install the
--> appropriate fixed libraries. Preliminary patches
--> are now available for 11.00 and 11.11 which eliminate
--> the maunal installation of all but libc.1.
MANUAL ACTIONS: Yes - NonUpdate
Download and install the appropriate files.
AVAILABILITY: The files are available now. This bulletin will
be revised when patches are available.
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.
-----------------------------------------------------------------
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.
NOTE:
The files listed below also have the fix for
HPSBUX0209-215
SSRT2336 Security Vulnerability in XDR library
This bulletin should be implemented instead of
HPSBUX0209-215.
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
B. Recommended solution
Until patches are released, download and manually install
the appropriate libraries and preliminary patches.
System: hprc.external.hp.com (192.170.19.51)
Login: xdr2
Password: xdr2
Browser ftp access:
ftp://xdr2:xdr2@xxxxxxxxxxxxxxxxxxxx/
or
ftp://xdr2:xdr2@xxxxxxxxxxxxx/
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:
**REVISED 04**
libc.1.gz # 10.20, 11.00, 11.04,
# 11.11, 11.22
--> PHNE_28929.depot.gz # 11.00
--> PHNE_28929.text.gz # 11.00
--> PHNE_28930.depot.gz # 11.11
--> PHNE_28930.text.gz # 11.11
--> libnsl.1.32_11.00.gz # 11.04
--> libnsl.a.32_11.00.gz # 11.04
--> libnsl.1.64_11.00.gz # 11.04
--> libnsl.a.64_11.00.gz # 11.04
libnsl.so.1.32_11.22IA.gz # 11.22
libnsl.so.1.64_11.22IA.gz # 11.22
Verify the cksum or md5.
If you wish to verify the md5 sum please refer to:
HPSBUX9408-016
Patch sums and the MD5 program
**REVISED 04**
cksum:
--> 2405289836 8478720 PHNE_28929.depot
--> 3587776374 220723 PHNE_28929.text
--> 1995688196 7761920 PHNE_28930.depot
--> 1940563530 126042 PHNE_28930.text
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
2149197207 1490400 libnsl.so.1.32_11.22IA
755476395 1565336 libnsl.so.1.64_11.22IA
-->MD5 (PHNE_28929.depot) = 27dbd58c15b07c1a725246f9c569ef15
-->MD5 (PHNE_28929.text) = 2d04406687c627125c125182529958ae
-->MD5 (PHNE_28930.depot) = 5af99e5f733a8ef639ef0ae36f6533d5
-->MD5 (PHNE_28930.text) = 0a2597f08dfc01db7c501b2ed91579f0
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
MD5 (libnsl.so.1.32_11.22IA) = 6da4151346312058269645856e16ac89
MD5 (libnsl.so.1.64_11.22IA) = f5f89dd00c66d03d7e14a72232c86f25
For 10.20
====================================
Go to init state 2
#DIR=[path to new files]
#cd /usr/lib
#cp libc.1 libc.1.orig
#cp $DIR/libc.1 libc.1.new
#chown bin libc.1.new
#chgrp bin libc.1.new
#chmod 555 libc.1.new
#/sbin/mv libc.1 was.libc.1
#/sbin/mv libc.1.new libc.1
Reboot the system.
rm /usr/lib/was.libc.1
**REVISED 04**
--> For 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.
**REVISED 04**
--> For 11.00 and 11.11 (11i)
--> ====================================
--> Install the appropriate preliminary patch
--> swinstall:
--> PHNE_28929.depot #11.00
--> PHNE_28930.depot #11.11
Install libc.1 as follows:
#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.1 must be
restarted. Any applications that use libnsl.a must
be relinked and restarted.
Rebooting is the recommended way to restart the applications
using libnsl.1 or libc.1.
For 11.22 IA
====================================
#DIR=[path to new files]
#cd /usr/lib/hpux32
#cp $DIR/libnsl.so.1.32_11.22.IA libnsl.so.1.new
#chmod 555 libnsl.so.1.new
#chown bin:bin libnsl.so.1.new
#mv libnsl.so.1 libnsl.so.1.orig
#mv libnsl.so.1.new libnsl.so.1
#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
#cd /usr/lib/hpux64
#cp $DIR/libnsl.so.1.64_11.22.IA libnsl.so.1.new
#chmod 555 libnsl.so.1.new
#chown bin:bin libnsl.so.1.new
#mv libnsl.so.1 libnsl.so.1.orig
#mv libnsl.so.1.new 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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-----------------------------------------------------------------
(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
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________________________________________________________________
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