var-200106-0110
Vulnerability from variot
TCP implementations that use random increments for initial sequence numbers (ISN) can allow remote attackers to perform session hijacking or disruption by injecting a flood of packets with a range of ISN values, one of which may match the expected ISN. Attacks against TCP initial sequence number generation have been discussed for some time now. It has long been recognized that the ability to know or predict ISNs can lead to TCP connection hijacking or spoofing. What was not previously illustrated was just how predictable one commonly-used method of randomizing new connection ISNs is in some modern TCP/IP implementations. A vulnerability exists in some TCP/IP stack implementations that use random increments for initial sequence numbers. Such implementations are vulnerable to statistical attack, which could allow an attacker to predict, within a reasonable range, sequence numbers of future and existing connections. By predicting a sequence number, several attacks could be performed; an attacker could disrupt or hijack existing connections, or spoof future connections. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
HP SECURITY BULLETIN
HPSBTU01210 REVISION: 0
SSRT4743, SSRT4884 rev.0 - HP Tru64 UNIX TCP/IP remote Denial of Service (DoS)
NOTICE: There are no restrictions for distribution of this Security Bulletin provided that it remains complete and intact.
The information in this Security Bulletin should be acted upon as soon as possible.
INITIAL RELEASE: 15 July 2005
POTENTIAL SECURITY IMPACT: Remote Denial of Service (DoS)
SOURCE: Hewlett-Packard Company HP Software Security Response Team
VULNERABILITY SUMMARY: Several potential security vulnerabilities have been identified in the HP Tru64 UNIX TCP/IP including ICMP, and Initial Sequence Number generation (ISNs). These exploits could result in a remote Denial of Service (DoS) from network throughput reduction for TCP connections, the reset of TCP connections, or TCP spoofing.
REFERENCES: CERT CA-2001-09, NISCC Vulnerability Advisory VU#498440 VU#532967, CAN-2004-0790 CAN-2004-0791 CAN-2004-1060 CAN-2001-0328
SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. HP Tru64 UNIX 5.1B-3 HP Tru64 UNIX 5.1B-2/PK4 HP Tru64 UNIX 5.1A PK HP Tru64 UNIX 4.0G PK4 HP Tru64 UNIX 4.0F PK8
BACKGROUND:
Special Instructions for the Customer
The Internet Control Message Protocol (ICMP) (RFC 792) is used in the Internet Architecture to perform fault-isolation and recovery (RFC816), which is the group of actions that hosts and routers take to determine if a network failure has occurred.
The industry standard TCP specification (RFC 793) has a vulnerability whereby ICMP packets can be used to perform a variety of attacks such as blind connection reset attacks and blind throughput-reduction attacks. Blind connection reset attacks can be triggered by an attacker sending forged ICMP "Destination Unreachable, host unreachable" packets or ICMP "Destination Unreachable, port unreachable" packets. Blind throughput-reduction attacks can be caused by an attacker sending a forged ICMP type 4 (Source Quench) packet.
Path MTU Discovery (RFC 1191) describes a technique for dynamically discovering the MTU (maximum transmission unit) of an arbitrary internet path. This protocol uses ICMP packets from the router to discover the MTU for a TCP connection path. An attacker can reduce the throughput of a TCP connection by sending forged ICMP packets (or their IPv6 counterpart) to the discovering host, causing an incorrect Path MTU setting.
HP has addressed these potential vulnerabilities by providing a new kernel tunable in Tru64 UNIX V5.1B and 5.1A, icmp_tcpseqcheck. In Tru64 4.0F and 4.0G, HP has introduced two new kernel tunables, icmp_tcpseqcheck and icmp_rejectcodemask. The icmp_rejectcodemask tunable is already available in Tru64 UNIX V5.1B and 5.1A.
icmp_tcpseqcheck
The icmp_tcpseqcheck variable mitigates ICMP attacks against TCP by checking that the TCP sequence number contained in the payload of the ICMP error message is within the range of the data already sent but not yet acknowledged. An ICMP error message that does not pass this check is discarded. This behavior protects TCP against spoofed ICMP packets.
Set the tunable as follows:
icmp_tcpseqcheck=1 (default)
Provides a level of protection that reduces the possibility
of considering a spoofed ICMP packet as valid
to one in two raised to the thirty-second power.
icmp_tcpseqcheck=0
Retains existing behavior, i.e., accepts all ICMP packets
icmp_rejectcodemask
In the Requirements for IP Version 4 Routers (RFC 1812), research suggests that the use of ICMP Source Quench packets is an ineffective (and unfair) antidote for congestion. Thus, HP recommends completely ignoring ICMP Source Quench packets using the icmp_rejectcodemask tunable. The icmp_rejectcodemask is a bitmask that designates the ICMP codes that the system should reject. For example, to reject ICMP Source Quench packets, set the mask bit position for the ICMP_SOURCEQUENCH code 4, which is two to the 4th power = 16 (0x10 hex). The icmp_rejectcodemask tunable can be used to reject any ICMP packet type, or multiple masks can be combined to reject more than one type.
Note: the ICMP type codes are defined in "/usr/include/netinet/ip_icmp.h".
Set the tunable as follows:
icmp_rejectcodemask = 0x10
Rejects ICMP Source Quench packets
icmp_rejectcodemask = 0 (default)
Retains existing behavior, i.e., accepts all ICMP packets
Adjusting the variables
The ICMP sequence check variable (icmp_tcpseqcheck) can be adjusted using the sysconfig and sysconfigdb commands:
sysconfig -q inet icmp_tcpseqcheck
inet: icmp_tcpseqcheck = 1
sysconfig -r inet icmp_tcpseqcheck=0
icmp_tcpseqcheck: reconfigured
sysconfig -q inet icmp_tcpseqcheck
inet: icmp_tcpseqcheck = 0
sysconfig -q inet icmp_tcpseqcheck > /tmp/icmp_tcpseqcheck_merge
sysconfigdb -m -f /tmp/icmp_tcpseqcheck_merge inet
sysconfigdb -l inet
inet: icmp_tcpseqcheck = 1
Similarly, the icmp_rejectcodemask variable can be adjusted using the sysconfig and sysconfigdb commands:
sysconfig -q inet icmp_rejectcodemask
inet: icmp_rejectcodemask = 0
sysconfig -r inet icmp_rejectcodemask=0x10
icmp_rejectcodemask: reconfigured
sysconfig -q inet icmp_rejectcodemask
inet: icmp_rejectcodemask = 16
sysconfig -q inet icmp_rejectcodemask
/tmp/icmp_rejectcodemask_merge
sysconfigdb -m -f /tmp/icmp_rejectcodemask_merge inet
sysconfigdb -l inet
inet: icmp_rejectcodemask = 16
RESOLUTION:
Until the corrections are available in a mainstream release patch kit, HP is releasing the following Early Release Patch (ERP) kits publicly for use by any customer.
The ERP kits use dupatch to install and will not install over any installed Customer Specific Patches (CSPs) that have file intersections with the ERPs. Contact your service provider for assistance if the ERP installation is blocked by any of your installed CSPs.
The fixes contained in the ERP kits are scheduled to be available in the following mainstream patch kits:
HP Tru64 Unix 5.1B-4
Early Release Patches
The ERPs deliver the following file:
/sys/BINARY/inet.mod
HP Tru64 UNIX 5.1B-3 ERP Kit Name: T64KIT0025925-V51BB26-ES-20050628 Kit Location: http://www.itrc.hp.com/service/patch/patchDetail.do? patchid=T64KIT0025925-V51BB26-ES-20050628 MD5 checksum: 129251787a426320af16cd584b982027
HP Tru64 UNIX 5.1B-2/PK4 ERP Kit Name: T64KIT0025924-V51BB25-ES-20050628 Kit Location: http://www.itrc.hp.com/service/patch/patchDetail.do? patchid=T64KIT0025924-V51BB25-ES-20050628 MD5 checksum: 5fcc77a6876db6d10ef07ac96e11b3af
HP Tru64 UNIX 5.1A PK6 ERP Kit Name: T64KIT0025922-V51AB24-ES-20050628 Kit Location: http://www.itrc.hp.com/service/patch/patchDetail.do? patchid=T64KIT0025922-V51AB24-ES-20050628 MD5 checksum: 7c373b35c95945651a1cfda96bf71421
HP Tru64 UNIX 4.0G PK4 ERP Kit Name: T64KIT0025920-V40GB22-ES-20050628 Kit Location: http://www.itrc.hp.com/service/patch/patchDetail.do? patchid=T64KIT0025920-V40GB22-ES-20050628 MD5 checksum: 13849fd555239d75d300d1cb46dc995f
HP Tru64 UNIX 4.0F PK8 ERP Kit Name: DUXKIT0025921-V40FB22-ES-20050628 Kit Location: http://www.itrc.hp.com/service/patch/patchDetail.do? patchid=T64KIT0025920-V40GB22-ES-20050628 MD5 checksum: 743b614d39f185802701b7f2dd14ffa5
MD5 checksums are available from the ITRC patch database main page: http://www.itrc.hp.com/service/patch/mainPage.do - From the patch database main page, click Tru64 UNIX, then click verifying MD5 checksums under useful links.
General ITRC Patch Page: http://www.itrc.hp.com/service/patch/mainPage
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 obtain the security-alert PGP key please send an e-mail message to security-alert@hp.com with the Subject of 'get key' (no quotes).
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 IRTC security bulletins and patches - check ALL categories for which alerts are required and continue. Under Step2: your IRTC 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://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: 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.
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"data": "TCP implementations that use random increments for initial sequence numbers (ISN) can allow remote attackers to perform session hijacking or disruption by injecting a flood of packets with a range of ISN values, one of which may match the expected ISN. Attacks against TCP initial sequence number generation have been discussed for some time now. It has long been recognized that the ability to know or predict ISNs can lead to TCP connection hijacking or spoofing. What was not previously illustrated was just how predictable one commonly-used method of randomizing new connection ISNs is in some modern TCP/IP implementations. \nA vulnerability exists in some TCP/IP stack implementations that use random increments for initial sequence numbers. Such implementations are vulnerable to statistical attack, which could allow an attacker to predict, within a reasonable range, sequence numbers of future and existing connections. \nBy predicting a sequence number, several attacks could be performed; an attacker could disrupt or hijack existing connections, or spoof future connections. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA1\n\nHP SECURITY BULLETIN\n\nHPSBTU01210 REVISION: 0\n\nSSRT4743, SSRT4884 rev.0 - HP Tru64 UNIX TCP/IP remote Denial of\n Service (DoS)\n\nNOTICE:\nThere are no restrictions for distribution of this Security\nBulletin provided that it remains complete and intact. \n\nThe information in this Security Bulletin should be acted upon\nas soon as possible. \n\nINITIAL RELEASE:\n15 July 2005\n\nPOTENTIAL SECURITY IMPACT:\nRemote Denial of Service (DoS)\n\nSOURCE:\nHewlett-Packard Company\nHP Software Security Response Team\n\nVULNERABILITY SUMMARY:\nSeveral potential security vulnerabilities have been identified\nin the HP Tru64 UNIX TCP/IP including ICMP, and Initial Sequence\nNumber generation (ISNs). These exploits could result in a remote\nDenial of Service (DoS) from network throughput reduction for\nTCP connections, the reset of TCP connections, or TCP spoofing. \n\nREFERENCES:\nCERT CA-2001-09, NISCC Vulnerability Advisory VU#498440 VU#532967,\nCAN-2004-0790 CAN-2004-0791 CAN-2004-1060 CAN-2001-0328\n\nSUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. \nHP Tru64 UNIX 5.1B-3\nHP Tru64 UNIX 5.1B-2/PK4\nHP Tru64 UNIX 5.1A PK\nHP Tru64 UNIX 4.0G PK4\nHP Tru64 UNIX 4.0F PK8\n\nBACKGROUND:\n\nSpecial Instructions for the Customer\n\nThe Internet Control Message Protocol (ICMP) (RFC 792) is used in\nthe Internet Architecture to perform fault-isolation and recovery\n(RFC816), which is the group of actions that hosts and routers\ntake to determine if a network failure has occurred. \n\nThe industry standard TCP specification (RFC 793) has a\nvulnerability whereby ICMP packets can be used to perform a\nvariety of attacks such as blind connection reset attacks and\nblind throughput-reduction attacks. Blind connection reset\nattacks can be triggered by an attacker sending forged ICMP\n\"Destination Unreachable, host unreachable\" packets or ICMP\n\"Destination Unreachable, port unreachable\" packets. Blind\nthroughput-reduction attacks can be caused by an attacker sending\na forged ICMP type 4 (Source Quench) packet. \n\nPath MTU Discovery (RFC 1191) describes a technique for\ndynamically discovering the MTU (maximum transmission unit) of an\narbitrary internet path. This protocol uses ICMP packets from\nthe router to discover the MTU for a TCP connection path. An\nattacker can reduce the throughput of a TCP connection by sending\nforged ICMP packets (or their IPv6 counterpart) to the\ndiscovering host, causing an incorrect Path MTU setting. \n\nHP has addressed these potential vulnerabilities by providing a\nnew kernel tunable in Tru64 UNIX V5.1B and 5.1A,\nicmp_tcpseqcheck. In Tru64 4.0F and 4.0G, HP has introduced two\nnew kernel tunables, icmp_tcpseqcheck and icmp_rejectcodemask. \nThe icmp_rejectcodemask tunable is already available in Tru64\nUNIX V5.1B and 5.1A. \n\nicmp_tcpseqcheck\n\nThe icmp_tcpseqcheck variable mitigates ICMP attacks against TCP\nby checking that the TCP sequence number contained in the payload\nof the ICMP error message is within the range of the data already\nsent but not yet acknowledged. An ICMP error message that does\nnot pass this check is discarded. This behavior protects TCP\nagainst spoofed ICMP packets. \n\nSet the tunable as follows:\n\n icmp_tcpseqcheck=1 (default)\n\n Provides a level of protection that reduces the possibility\n of considering a spoofed ICMP packet as valid\n to one in two raised to the thirty-second power. \n\n icmp_tcpseqcheck=0\n\n Retains existing behavior, i.e., accepts all ICMP packets\n\nicmp_rejectcodemask\n\nIn the Requirements for IP Version 4 Routers (RFC 1812), research\nsuggests that the use of ICMP Source Quench packets is an\nineffective (and unfair) antidote for congestion. Thus, HP\nrecommends completely ignoring ICMP Source Quench packets using\nthe icmp_rejectcodemask tunable. The icmp_rejectcodemask is a\nbitmask that designates the ICMP codes that the system should\nreject. For example, to reject ICMP Source Quench packets,\nset the mask bit position for the ICMP_SOURCEQUENCH code 4,\nwhich is two to the 4th power = 16 (0x10 hex). \nThe icmp_rejectcodemask tunable can be used to reject any\nICMP packet type, or multiple masks can be combined to reject\nmore than one type. \n\nNote: the ICMP type codes are defined in\n \"/usr/include/netinet/ip_icmp.h\". \n\n Set the tunable as follows:\n\n icmp_rejectcodemask = 0x10\n\n Rejects ICMP Source Quench packets\n\n icmp_rejectcodemask = 0 (default)\n\n Retains existing behavior, i.e., accepts all ICMP packets\n\nAdjusting the variables\n\nThe ICMP sequence check variable (icmp_tcpseqcheck) can be\nadjusted using the sysconfig and sysconfigdb commands:\n\n# sysconfig -q inet icmp_tcpseqcheck\ninet:\nicmp_tcpseqcheck = 1\n# sysconfig -r inet icmp_tcpseqcheck=0\nicmp_tcpseqcheck: reconfigured\n# sysconfig -q inet icmp_tcpseqcheck\ninet:\nicmp_tcpseqcheck = 0\n# sysconfig -q inet icmp_tcpseqcheck \u003e /tmp/icmp_tcpseqcheck_merge\n# sysconfigdb -m -f /tmp/icmp_tcpseqcheck_merge inet\n# sysconfigdb -l inet\n\ninet:\n icmp_tcpseqcheck = 1\n\nSimilarly, the icmp_rejectcodemask variable can be adjusted using\nthe sysconfig and sysconfigdb commands:\n\n# sysconfig -q inet icmp_rejectcodemask\ninet:\nicmp_rejectcodemask = 0\n# sysconfig -r inet icmp_rejectcodemask=0x10\nicmp_rejectcodemask: reconfigured\n# sysconfig -q inet icmp_rejectcodemask\ninet:\nicmp_rejectcodemask = 16\n# sysconfig -q inet icmp_rejectcodemask\n \u003e /tmp/icmp_rejectcodemask_merge\n# sysconfigdb -m -f /tmp/icmp_rejectcodemask_merge inet\n# sysconfigdb -l inet\n\ninet:\n icmp_rejectcodemask = 16\n\nRESOLUTION:\n\nUntil the corrections are available in a mainstream\nrelease patch kit, HP is releasing the following Early Release\nPatch (ERP) kits publicly for use by any customer. \n\nThe ERP kits use dupatch to install and will not install over\nany installed Customer Specific Patches (CSPs) that have file\nintersections with the ERPs. Contact your service provider for\nassistance if the ERP installation is blocked by any of your\ninstalled CSPs. \n\nThe fixes contained in the ERP kits are scheduled to be\navailable in the following mainstream patch kits:\n\n HP Tru64 Unix 5.1B-4\n\nEarly Release Patches\n\nThe ERPs deliver the following file:\n\n/sys/BINARY/inet.mod\n\nHP Tru64 UNIX 5.1B-3 ERP Kit Name:\n T64KIT0025925-V51BB26-ES-20050628\nKit Location:\n http://www.itrc.hp.com/service/patch/patchDetail.do?\n patchid=T64KIT0025925-V51BB26-ES-20050628\nMD5 checksum: 129251787a426320af16cd584b982027\n\nHP Tru64 UNIX 5.1B-2/PK4 ERP Kit Name:\n T64KIT0025924-V51BB25-ES-20050628\nKit Location:\n http://www.itrc.hp.com/service/patch/patchDetail.do?\n patchid=T64KIT0025924-V51BB25-ES-20050628\nMD5 checksum: 5fcc77a6876db6d10ef07ac96e11b3af\n\nHP Tru64 UNIX 5.1A PK6 ERP Kit Name:\n T64KIT0025922-V51AB24-ES-20050628\nKit Location:\n http://www.itrc.hp.com/service/patch/patchDetail.do?\n patchid=T64KIT0025922-V51AB24-ES-20050628\nMD5 checksum: 7c373b35c95945651a1cfda96bf71421\n\nHP Tru64 UNIX 4.0G PK4 ERP Kit Name:\n T64KIT0025920-V40GB22-ES-20050628\nKit Location:\n http://www.itrc.hp.com/service/patch/patchDetail.do?\n patchid=T64KIT0025920-V40GB22-ES-20050628\nMD5 checksum: 13849fd555239d75d300d1cb46dc995f\n\nHP Tru64 UNIX 4.0F PK8 ERP Kit Name:\n DUXKIT0025921-V40FB22-ES-20050628\nKit Location:\n http://www.itrc.hp.com/service/patch/patchDetail.do?\n patchid=T64KIT0025920-V40GB22-ES-20050628\nMD5 checksum: 743b614d39f185802701b7f2dd14ffa5\n\nMD5 checksums are available from the ITRC patch database main\npage:\n http://www.itrc.hp.com/service/patch/mainPage.do\n- From the patch database main page, click Tru64 UNIX,\nthen click verifying MD5 checksums under useful links. \n\nGeneral ITRC Patch Page:\nhttp://www.itrc.hp.com/service/patch/mainPage\n\n\n\nSUPPORT: For further information, contact normal HP Services\nsupport channel. \n\nREPORT: To report a potential security vulnerability with any HP\nsupported product, send Email to: security-alert@hp.com. It is\nstrongly recommended that security related information being\ncommunicated to HP be encrypted using PGP, especially exploit\ninformation. To obtain the security-alert PGP key please send an\ne-mail message to security-alert@hp.com with the Subject of\n\u0027get key\u0027 (no quotes). \n\nSUBSCRIBE: To initiate a subscription to receive future HP\nSecurity Bulletins via Email:\n\nhttp://h30046.www3.hp.com/driverAlertProfile.php?regioncode=NA\u0026\nlangcode=USENG\u0026jumpid=in_SC-GEN__driverITRC\u0026topiccode=ITRC\n\nOn the web page: ITRC security bulletins and patch sign-up\nUnder Step1: your IRTC security bulletins and patches\n - check ALL categories for which alerts are required and\n continue. \nUnder Step2: your IRTC operating systems\n - verify your operating system selections are checked and\n save. \n\nTo update an existing subscription:\nhttp://h30046.www3.hp.com/subSignIn.php\n\nLog in on the web page\n Subscriber\u0027s choice for Business: sign-in. \nOn the Web page:\n Subscriber\u0027s Choice: your profile summary\n - use Edit Profile to update appropriate sections. \n\nTo review previously published Security Bulletins visit:\nhttp://itrc.hp.com/service/cki/secBullArchive.do\n\n* The Software Product Category that this Security Bulletin\n relates to is represented by the 5th and 6th characters of the\n Bulletin number:\n GN = HP General SW,\n MA = HP Management Agents,\n MI = Misc. 3rd party SW,\n MP = HP MPE/iX,\n NS = HP NonStop Servers,\n OV = HP OpenVMS,\n PI = HP Printing \u0026 Imaging,\n ST = HP Storage SW,\n TL = HP Trusted Linux,\n TU = HP Tru64 UNIX,\n UX = HP-UX,\n VV = HP Virtual Vault\n\nSystem management and security procedures must be reviewed\nfrequently to maintain system integrity. HP is continually\nreviewing and enhancing the security features of software products\nto provide customers with current secure solutions. \n\n\"HP is broadly distributing this Security Bulletin in order to\nbring to the attention of users of the affected HP products the\nimportant security information contained in this Bulletin. HP\nrecommends that all users determine the applicability of this\ninformation to their individual situations and take appropriate\naction. HP does not warrant that this information is necessarily\naccurate or complete for all user situations and, consequently, HP\nwill not be responsible for any damages resulting from user\u0027s use\nor disregard of the information provided in this Bulletin. To the\nextent permitted by law, HP disclaims all warranties, either\nexpress or implied, including the warranties of merchantability\nand fitness for a particular purpose, title and non-infringement.\"\n\n\n(c)Copyright 2005 Hewlett-Packard Development Company, L.P. \nHewlett-Packard Company shall not be liable for technical or\neditorial errors or omissions contained herein. The information\nprovided is provided \"as is\" without warranty of any kind. To the\nextent permitted by law, neither HP nor its affiliates,\nsubcontractors or suppliers will be liable for incidental, special\nor consequential damages including downtime cost; lost profits;\ndamages relating to the procurement of substitute products or\nservices; or damages for loss of data, or software restoration. \nThe information in this document is subject to change without\nnotice. Hewlett-Packard Company and the names of Hewlett-Packard\nproducts referenced herein are trademarks of Hewlett-Packard\nCompany in the United States and other countries. Other product\nand company names mentioned herein may be trademarks of their\nrespective owners. \n\n-----BEGIN PGP SIGNATURE-----\nVersion: PGP 8.1\n\niQA/AwUBQtuSLuAfOvwtKn1ZEQJXrwCgpDVfLyXvXZd3sF6bswgQ3DLz5jcAoNt2\nAs7Gf9BY697IdlYjIlmrirG1\n=143G\n-----END PGP SIGNATURE-----\n\n",
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