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Home » Hacking News » Hewlett Packard SSRT2408: Bind buffer overflow

Hewlett Packard SSRT2408: Bind buffer overflow

by Nikola Strahija on September 2nd, 2003 A potential security vulnerability has been found in the DNS resolver libraries.


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**REVISED 01**
Source: HEWLETT-PACKARD COMPANY
SECURITY BULLETIN: HPSBUX0212-233
Originally issued: 18 Dec 2002
Last revised: 02 September 2003
SSRT2408 Potential Security Vulnerability in Bind (rev.1)
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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.

-----------------------------------------------------------------

PROBLEM: Potential buffer overflows in DNS resolver libraries.

PLATFORM: Bind 4.9.7 or Bind-8.1.2 on the following:
HP-UX releases B.10.10, B.10.20, B.11.00,
B.11.04 (VVOS), and B.11.11.

IMPACT: Potential unauthorized access, denial of service.

SOLUTION: Until a product upgrade is available, download and
install appropriate preliminary updates and the
appropriate preliminary or final patches.
The following patches are available from the itrc:
PHNE_28449 for B.11.00
PHNE_27881 for B.11.04 (VVOS)
PHNE_28450 for B.11.11

MANUAL ACTIONS: Yes - NonUpdate
Install the applicable upgrades and patches
listed in the "Recommended solutions"
section (below).

AVAILABILITY: All patches are available from the itrc and web
upgrades are available from software.hp.com
except for PHNE_27792.depot.

CHANGE SUMMARY: Rev.01 - Added AFFECTED VERSIONS section.
Patches and web upgrades available.

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A. Background
CERT advisory CA-2002-31 reports multiple vulnerabilities
in Bind. The following HP supplied Bind versions are
potentially vulnerable:

BIND4.9.7 on 10.10, 10.20, 11.00, 11.04
BIND8.1.2 on 11.00, 11.11

**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.11.11
=============
InternetSrvcs.INETSVCS-RUN
fix: PHNE_28450 or subsequent

HP-UX B.11.04
=============
InternetSrvcs.INETSVCS-RUN
fix: PHNE_29634 or subsequent

HP-UX B.11.00
=============
BINDv812.INETSVCS-BIND
fix: revision B.11.00.01.004 or subsequent

InternetSrvcs.INETSVCS-RUN
fix: PHNE_28449 or subsequent

HP-UX B.10.20
=============
InternetSrvcs.INETSVCS-RUN
fix: PHNE_27792.depot

HP-UX B.10.10
=============
InternetSrvcs.INETSVCS-RUN
fix: PHNE_27792.depot

--> END AFFECTED VERSIONS

B. Recommended solution

**REVISED 01**
CAUTION: If you have installed a web upgrade, the Base OS
version remains on the system. This command:
"/usr/bin/enable_inet -r bind"
restores the Base OS version. The Base OS version
cannot be patched while the web upgrade version is
enabled. After reverting to the Base OS version
you should verify that it is properly patched as
described below.

The following fixes are available:

HP-UX B.10.10
HP-UX B.10.20
=============

PHNE_27792.depot s700_800 10.10/10.20 Bind 4.9.7 components
This is available via ftp as described below.


HP-UX B.11.00 Bind 8.1.2
========================

BIND812 version B.11.00.01.004 or subsequent
from http://software.hp.com.

HP-UX B.11.00 Bind 4.9.7
========================

PHNE_28449 s700_800 11.00 Bind 4.9.7 components

HP-UX B.11.04
=============

PHNE_29634 s700_800 11.04 (VVOS) Bind 4.9.7 components

HP-UX B.11.11 Bind 8.1.2
========================

PHNE_28450 s700_800 11.11 Bind-8.1.2 patch

=========================================================

For B.10.10 and B.10.20 download PHNE_27792.depot
from the following ftp site:

System: hprc.external.hp.com (192.170.19.51)
Login: bind
Password: bind1

FTP Access: ftp://bind:[email protected]/
or: ftp://bind:[email protected]/
file: BIND812_v4.depot.gz

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

MD5 (PHNE_27792.depot) = 613aa5827f0b4df4f51188857b5834d0
cksum 4143672841 696320 PHNE_27792.depot


Install PHNE_27792.depot using swinstall.



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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.

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.

For information on the Security Patch Check tool, see:
http://www.software.hp.com/cgi-bin/swdepot_parser.cgi/cgi/
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".

D. To report new security vulnerabilities, send email to

[email protected]

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 [email protected]

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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.

________________________________________________________________

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