Hewlett-Packard Company Information for VU#412115

HP has investigated its network device drivers on HP-UX in order to determine the extent to which they are affected by this issue of reusing old frame buffer data to pad packets.

The Security Bulletin HPSBUX0306-261 entitled "SSRT3451 Potential Security Vulnerability in HP-UX network drivers (Data Leakage)" addresses the vulnerability and is available on itrc.hp.com.

Using your itrc account, security bulletins can be found here:

http://itrc.hp.com/cki/bin/doc.pl/screen=ckiSecurityBulletin

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Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0305-261
Originally issued: 27 May 2003
Last revised: 08 July 2003
SSRT3451 Potential Security Vulnerability in HP-UX network
drivers (Data Leakage) (rev. 01)
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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 for Ethernet device drivers to reuse packet
data for padding.
Cross-reference: CERT/cc VU#412115 and CVE CAN-2003-0001

IMPACT:   Device drivers may not pad frames with null bytes,
potential leakage of kernel memory.

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

** REVISED 01 **
SOLUTION: Install appropriate device driver patches:
for HP-UX B.11.04 (VVOS):
--->>    PHNE_29244 B.11.04 (VVOS) EISA 100BT cumulative patch
--->>    PHNE_29267 B.11.04 (VVOS) LAN product cumulative patch

for HP-UX B.11.00
--->>    PHNE_28143 s700_800 LAN product cumulative patch
PHNE_28636 s700_800 EISA 100BT cumulative patch

for HP-UX 10.20
PHNE_28635 s700_800 EISA 100BT cumulative patch
PHNE_28536 s800 LAN products cumulative patch
PHNE_28535 s700 LAN products cumulative patch

MANUAL ACTIONS: No

AVAILABILITY:  All patches are available now on <itrc.hp.com>.

CHANGE SUMMARY: 1) Added VVOS patches;
Corrected PHNE_28143 patch description.
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A. Background
CERT has reported that network device drivers may reuse old
frame buffer data to pad packets resulting in an information
leakage vulnerability that may allow remote harvesting of
sensitive information from affected devices.
http://www.kb.cert.org/vuls/id/412115

The only HP-UX network device drivers affected are:
btlan0  for EISA    on B.10.20, B.11.00, B.11.04
lan3    for NIO     on B.10.20, B.11.00, B.11.04

NOT IMPACTED:
HP NonStop Servers,
HP Tru64 UNIX/TruCluster Server,
HP OpenVMS

** REVISED 01 **
--> 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.11.04
--> =============
--> 100BT-EISA-KRN.100BT-KRN
--> fix: PHNE_29244
-->
--> Networking.LAN2-KRN
--> fix: PHNE_29267
-->
-->
--> HP-UX B.11.00
--> =============
--> 100BT-EISA-KRN.100BT-KRN
--> fix: PHNE_28636
-->
--> Networking.LAN2-KRN
--> fix: PHNE_28143
-->
--> HP-UX B.10.20 (s800)
--> ====================
--> 100BT-EISA-KRN.100BT-KRN
--> fix: PHNE_28635
-->
--> Networking.LAN-KRN
--> fix: PHNE_28536
-->
--> HP-UX B.10.20 (s700)
--> ====================
--> 100BT-EISA-KRN.100BT-KRN
--> fix: PHNE_28635
-->
--> Networking.LAN-KRN
--> fix: PHNE_28535


** REVISED 01 **
B. Recommended solution
These patches completely solve the identified problem,
for HP-UX B.11.04 (VVOS):
--->>   PHNE_29244 B.11.04 (VVOS) EISA 100BT cumulative patch
--->>   PHNE_29267 B.11.04 (VVOS) LAN product cumulative patch

for HP-UX B.11.00
--->>   PHNE_28143 s700_800 LAN product cumulative patch
PHNE_28636 s700_800 EISA 100BT cumulative patch

for HP-UX 10.20
PHNE_28635 s700_800 EISA 100BT cumulative patch
PHNE_28536 s800 LAN products cumulative patch
PHNE_28535 s700 LAN products cumulative patch

To identify if your system uses the affected drivers, as
root run ioscan to list all reportable hardware:
#/sbin/ioscan -fkClan
Class  I  H/W Path  Driver  S/W State H/W Type  Description
============================================================
lan    1  8/20/5/1  btlan0  CLAIMED  INTERFACE  EISA card

# ioscan -fkClan
Class  I  H/W Path  Driver  S/W State H/W Type  Description
============================================================
lan    0  56.1      lan3    CLAIMED  INTERFACE


NOTE: A reboot will be required after installation of
these patches.

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:

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Use the 'Login' tab at the left side of the screen to login
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or

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NOTE: Using your itrc account security bulletins can be
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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,
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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
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verify fixes implemented via a product upgrade.

For information on the Security Patch Check tool, see:
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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".

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2D2A7D59
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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
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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