HP-UX running TCP/IP Remote Denial of Service (DoS)

2005.12.16
Risk: Medium
Local: No
Remote: Yes
CWE: N/A


CVSS Base Score: 5/10
Impact Subscore: 2.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: None
Integrity impact: None
Availability impact: Partial

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 SUPPORT COMMUNICATION - SECURITY BULLETIN Document ID: c00579189 Version: 1 HPSBUX02087 SSRT4728 rev.1 - HP-UX running TCP/IP Remote Denial of Service (DoS) NOTICE: The information in this Security Bulletin should be acted upon as soon as possible. Release Date: 2005-12-09 Last Updated: 2005-12-13 Potential Security Impact: Remote Denial of Service (DoS) Source: Hewlett-Packard Company, HP Software Security Response Team VULNERABILITY SUMMARY A potential security vulnerability has been identified with HP-UX running TCP/IP. The potential vulnerability could be exploited remotely to cause a Denial of Service. References: CVE-2004-0744 SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. HP-UX B.11.00, B.11.04, B.11.11, B.11.23 running TCP/IP. BACKGROUND To determine if an HP-UX system has an affected version, search the output of "swlist -a revision -l fileset" for one of the filesets listed below. For affected systems verify that the recommended action has been taken. AFFECTED VERSIONS HP-UX B.11.00 ============= Networking.NET-KRN action: install PHNE_33395 or subsequent and run sqmax (see Resolution section) HP-UX B.11.04 ============= Networking.NET-KRN action: install PHNE_33427 or subsequent and run sqmax (see Resolution section) HP-UX B.11.11 ============= Streams.STREAMS-KRN action: install PHNE_31091 or subsequent and run sqmax (see Resolution section) HP-UX B.11.23 ============= action: install PHKL_31500 END AFFECTED VERSIONS RESOLUTION HP has made patches and product updates available to resolve the issue. Currently a system parameter must also be set as described below. B.11.00 install PHNE_33395 or subsequent, then run "sqmax 1000" B.11.04 install PHNE_33427 or subsequent, then run "sqmax 1000" B.11.11 install PHNE_31091 or subsequent, then run "sqmax 1000" B.11.23 install PHKL_31500, sqmax not required The patches are available from http://itrc.hp.com For B.11.23: An alternative to installing PHKL_31500 for B.11.23 is to install IPF-HP revision A.03.05.10.02 or subsequent. IPF-HP is available from: http://www.hp.com/go/softwaredepot For B.11.00, B.11.04, and B.11.11: After the patches listed above are installed an internal system parameter must be set. A utility, sqmax, has been provided to set the parameter. The parameter must be set whenever the system is rebooted. The parameter is set as follows: /usr/contrib/bin/sqmax 1000 The sqmax utility is available via ftp: System: hprc.external.hp.com (192.170.19.100) Login: sqmax Password: sqmax FTP Access: ftp://sqmax:sqmax (at) hprc.external.hp (dot) com [email concealed]/ or: ftp://sqmax:sqmax (at) 192.170.19 (dot) 100 [email concealed]/ 1. Download sqmax.tar from the ftp site into a secure directory. 2. Verify the cksum or md5sum: cksum 3637780786 30720 md5sum 23211654ef947e9cbf389b88f5b0cde6 3. Unpack the archive: tar -xvf sqmax.tar 4. Refer to sqmax.readme for further instructions. MANUAL ACTIONS: Yes - NonUpdate B.11.00, B.11.04, B.11.11 - After installing patch, run "sqmax 1000". PRODUCT SPECIFIC INFORMATION HP-UX Security Patch Check: Security Patch Check revision B.02.00 analyzes all HP-issued Security Bulletins to provide a subset of recommended actions that potentially affect a specific HP-UX system. For more information: http://software.hp.com/portal/swdepot/displayProductInfo.do? productNumber=B6834AA HISTORY Version:1 (rev.1) 14 December 2005 Initial release 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 (at) hp (dot) com. [email concealed] 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 (at) hp (dot) com [email concealed] 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 Virtual Vault 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." (c)Copyright 2005 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 nor 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. -----BEGIN PGP SIGNATURE----- Version: PGP 8.1 iQA/AwUBQ6FcR+AfOvwtKn1ZEQITpgCeLz/Ra+iiQfRtvf9y//+0HIMaWtQAoLsm V8gSPKc0cYHDOo5goIXnpNn/ =+jGS -----END PGP SIGNATURE-----


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