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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.

CVE-2009-0696 – Fehlerhafte Zusicherung in der BIND Funktion
dns_db_findrdataset()

Ein Fehler bei der Verarbeitung von Dynamic DNS Update Paketen in der
BIND9 Funktion dns_db_findrdataset() fuehrt dazu, das eine Zusicherung
(Assertion) fehlschlaegt, wodurch der Nameserverprozess beendet wird.
Angreifer koennen diese Schwachstelle ueber das Netz zu einem Denial
of Service Angriff ausnutzen, indem sie ein entsprechend aufgebautes
Dynamic DNS Update Paket an einen verwundbaren BIND Nameserver senden.
Das Paket muss Resource Records aus einer Domain enthalten, fuer die
der Nameserver als Master fungiert. Hingegen spielt es keine Rolle, ob
Dynamic DNS auf dem Server aktiviert sind oder nicht. Bitte beachten
Sie, das alle BIND Nameserver per Default fuer einige Zonen wie z.B.
localhost als Master konfiguriert sind.

Betroffen sind die folgenden Software Pakete und Plattformen:

DNS BIND v 9.2.3 Non-Secure Version auf HP NonStrop Server Version
T0685G06^AAA, T0685G06^AAC, T0685H01^AAB oder T0685H01^AAD
DNS BIND v 9.3.0 Secure Version auf HP NonStop Server Version T0708G06
oder T0708H01

HP NonStop Server Version T0685G06^AAA, T0685G06^AAC, T0685H01^AAB,
T0685H01^AAD, T0708G06 oder T0708H01

Vom Hersteller werden ueberarbeitete Pakete zur Verfuegung gestellt.

Hersteller Advisory:
http://www5.itrc.hp.com/service/cki/docDisplay.do?docId=c01855358

(c) der deutschen Zusammenfassung bei DFN-CERT Services GmbH; die
Verbreitung, auch auszugsweise, ist nur unter Hinweis auf den Urheber,
DFN-CERT Services GmbH, und nur zu nicht kommerziellen Zwecken
gestattet.

Mit freundlichen Gruessen,
Klaus Moeller, DFN-CERT

– —
Dipl. Inform. Klaus Moeller (Incident Response Team)
Phone: +49 40 808077-555, Fax: +49 40 808077-556

DFN-CERT Services GmbH, https://www.dfn-cert.de, Phone +49 40 808077-555
Sitz / Register: Hamburg, AG Hamburg, HRB 88805, Ust-IdNr.: DE 232129737
Sachsenstrase 5, 20097 Hamburg/Germany, CEO: Dr. Klaus-Peter Kossakowski

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SUPPORT COMMUNICATION – SECURITY BULLETIN

Document ID: c01855358
Version: 1

HPSBNS02455 SSRT090137 rev.1 – HP NonStop Server Running DNS BIND Server, Remote Denial of Service (DoS)

NOTICE: The information in this Security Bulletin should be acted upon as soon as possible.

Release Date: 2009-09-21
Last Updated: 2009-09-21

Potential Security Impact: Denial of Service (DoS)

Source: Hewlett-Packard Company, HP Software Security Response Team

VULNERABILITY SUMMARY
A potential security vulnerability has been identified on HP NonStop Server when running the DNS BIND Server. The vulnerability could be remotely exploited to create a Denial of Service (DoS).

References: CVE-2009-0696

SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
DNS BIND v 9.2.3 Non-Secure Version if running on T0685G06^AAA, T0685G06^AAC, T0685H01^AAB, T0685H01^AAD.
DNS BIND v 9.3.0 Secure Version if running on T0708G06 or T0708H01.

BACKGROUND

CVSS 2.0 Base Metrics
===========================================================
Reference Base Vector Base Score
CVE-2009-0696 (AV:N/AC:M/Au:N/C:N/I:N/A:P) 4.3
===========================================================
Information on CVSS is documented
in HP Customer Notice: HPSN-2008-002

RESOLUTION

HP has made the following software updates available to resolve the vulnerability.

Please install T0685 SPRs appropriate for the corresponding RVUs:

Product SPR
======= ===
DNS BIND v 9.2.3 Non-Secure Version T0685G06^AAF

This SPR is usable with these RVUs:
G06.24 G06.25 G06.26 G06.27.00 G06.28.00 G06.29.00 G06.30.00 G06.31.00 G06.32.0

This SPR is already present in these RVUs:
None

Requisite SPRs:
None

Superseded SPRs:
T0685G06^AAA, T0685G06^AAC

RVU containing final fix:
None

Installation impact:
Minimal system impact

Product SPR
======= ===
DNS BIND v 9.2.3 Non-Secure Version T0685H01^AAE

This SPR is usable with these RVUs:
All H-series and J-series RVUs

This SPR is already present in these RVUs:
None

Requisite SPRs:
None

Superseded SPRs:
T0685H01^AAB, T0685H01^AAD

RVU containing final fix:
None

Installation impact:
Minimal system impact

Product SPR
======= ===
DNS BIND v 9.3.0 Secure Version T0708G06^AAB

This SPR is usable with these RVUs:
G06.27.00 G06.28.00 G06.29.00 G06.30.00 G06.31.00 G06.32.00

This SPR is already present in these RVUs:
None

Requisite SPRs:
None

Superseded SPRs:
None

RVU containing final fix:
None

Installation impact:
Minimal system impact

Product SPR
======= ===
DNS BIND v 9.3.0 Secure Version T0708H01^AAA

This SPR is usable with these RVUs:
All H-series and J-series RVUs

This SPR is already present in these RVUs:
None

Requisite SPRs:
None

Superseded SPRs:
None

RVU containing final fix:
None

Installation impact:
Minimal system impact

PRODUCT SPECIFIC INFORMATION
None

HISTORY

Version:1 (rev.1) – 21 September 2009 Initial release

Third Party Security Patches: Third party security patches that are to be installed on systems running HP software products should be applied in accordance with the customer’s patch management policy.

Support: For further information, contact normal HP Services support channel.

Report: To report a potential security vulnerability with any HP supported product, send Email to: security-alert@hp.com
It is strongly recommended that security related information being communicated to HP be encrypted using PGP, especially exploit information.
To get the security-alert PGP key, please send an e-mail message as follows:
To: security-alert@hp.com
Subject: get key
Subscribe: To initiate a subscription to receive future HP Security Bulletins via Email:
http://h30046.www3.hp.com/driverAlertProfile.php?regioncode=NA&langcode=USENG&jumpid=in_SC-GEN__driverITRC&topiccode=ITRC
On the web page: ITRC security bulletins and patch sign-up
Under Step1: your ITRC security bulletins and patches
-check ALL categories for which alerts are required and continue.
Under Step2: your ITRC operating systems
-verify your operating system selections are checked and save.

To update an existing subscription: http://h30046.www3.hp.com/subSignIn.php
Log in on the web page: Subscriber’s choice for Business: sign-in.
On the web page: Subscriber’s Choice: your profile summary – use Edit Profile to update appropriate sections.

To review previously published Security Bulletins visit: http://www.itrc.hp.com/service/cki/secBullArchive.do

* The Software Product Category that this Security Bulletin
relates to is represented by the 5th and 6th characters
of the Bulletin number in the title:

GN = HP General SW
MA = HP Management Agents
MI = Misc. 3rd Party SW
MP = HP MPE/iX
NS = HP NonStop Servers
OV = HP OpenVMS
PI = HP Printing & Imaging
ST = HP Storage SW
TL = HP Trusted Linux
TU = HP Tru64 UNIX
UX = HP-UX
VV = HP VirtualVault

System management and security procedures must be reviewed frequently to maintain system integrity. HP is continually reviewing and enhancing the security features of software products to provide customers with current secure solutions.

“HP is broadly distributing this Security Bulletin in order to bring to the attention of users of the affected HP products the important security information contained in this Bulletin. HP recommends that all users determine the applicability of this information to their individual situations and take appropriate action. HP does not warrant that this information is necessarily accurate or complete for all user situations and, consequently, HP will not be responsible for any damages resulting from user’s use or disregard of the information provided in this Bulletin. To the extent permitted by law, HP disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose, title and non-infringement.”

Copyright 2009 Hewlett-Packard Development Company, L.P.
Hewlett-Packard Company shall not be liable for technical or editorial errors or omissions contained herein. The information provided is provided “as is” without warranty of any kind. To the extent permitted by law, neither HP or its affiliates, subcontractors or suppliers will be liable for incidental,special or consequential damages including downtime cost; lost profits;damages relating to the procurement of substitute products or services; or damages for loss of data, or software restoration. The information in this document is subject to change without notice. Hewlett-Packard Company and the names of Hewlett-Packard products referenced herein are trademarks of Hewlett-Packard Company in the United States and other countries. Other product and company names mentioned herein may be trademarks of their respective owners.
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