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| -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 HP SECURITY BULLETIN HPSBUX01019 REVISION: 2 SSRT4717 rev.2 Remote denial of service in Apache OpenSSL SSL/TLS ----------------------------------------------------------------- NOTICE: There are no restrictions for distribution of this Bulletin provided that it remains complete and intact. The information in this Security bulletin should be acted upon as soon as possible. INITIAL RELEASE: 07 July 2004 POTENTIAL SECURITY IMPACT: Remote denial of service SOURCE: HEWLETT-PACKARD COMPANY HP Software Security Response Team REFERENCES: CAN-2003-0079, CAN-2004-0112, CERT TA04-078A VULNERABILITY SUMMARY: Two potential security vulnerabilities have been identified in OpenSSL by NISCC (224012/1 and 224012/2). The Common Vulnerabilities and Exposures project < http://cve.mitre.org/> has referenced them as the following CAN-2004-0079, and CAN-2004-0112. The CERT summary is TA04-078A. 1. The do_change_cipher_spec function in OpenSSL allows remote attackers to cause a denial of service via a crafted SSL/TLS handshake that triggers a null dereference. http://cve.mitre.org/cgi-bin/cvename...=CAN-2004-0079 2. The SSL/TLS handshaking, when using Kerberos ciphersuites, does not properly check the length of Kerberos tickets during a handshake, which allows remote attackers to cause a denial of service via a crafted SSL/TLS handshake that causes an out-of-bounds read. http://cve.mitre.org/cgi-bin/cvename...=CAN-2004-0112 SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. HP-UX B.11.00, B.11.11, B.11.22, and B.11.23 running the hpuxwsAPACHE HP-UX Apache-based Web Server. B.11.04 BACKGROUND: Two potential security vulnerabilities have been identified in OpenSSL by NISCC ((224012/1 and 224012/2). The Common Vulnerabilities and Exposures project < http://cve.mitre.org/> has referenced them as CAN-2004-0079 and CAN-2004-0112. AFFECTED VERSIONS Note: 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 the recommended patch or update is installed. For IPv4: HP-UX B.11.00 HP-UX B.11.11 ============= hpuxwsAPACHE action: install revision A.2.0.49.00 or subsequent HP-UX B.11.22 ============= hpuxwsAPACHE action: migrate to B.11.23 For IPv6: HP-UX B.11.11 ============= hpuxwsAPACHE,revision=B.1.0.00.01 hpuxwsAPACHE,revision=B.1.0.07.01 hpuxwsAPACHE,revision=B.1.0.08.01 hpuxwsAPACHE,revision=B.1.0.09.01 hpuxwsAPACHE,revision=B.1.0.10.01 hpuxwsAPACHE,revision=B.2.0.48.00 action: install revision B.2.0.49.00 or subsequent HP-UX B.11.23 ============= hpuxwsAPACHE action: install revision B.2.0.49.00 or subsequent HP-UX B.11.04 Virtualvault A.04.70 ============================== VaultTS.VV-IWS action: install PHSS_30639 or subsequent VaultTS.VV-OPENSSH action: install PHSS_30640 or subsequent VaultWS.WS-CORE action: install PHSS_30641 or subsequent VaultTGP.TGP-CORE action: install PHSS_30642 or subsequent HP-UX B.11.04 Virtualvault A.04.60 ============================== VaultTS.VV-IWS action: install PHSS_30643 or subsequent VaultTS.VV-OPENSSH action: install PHSS_30644 or subsequent VaultWS.WS-CORE action: install PHSS_30645 or subsequent VaultTGP.TGP-CORE action: install PHSS_30646 or subsequent HP-UX B.11.04 Virtualvault A.04.50 ============================== VaultTS.VV-IWS action: install PHSS_30647 or subsequent VaultWS.WS-CORE action: install PHSS_30648 or subsequent HP-UX B.11.04 HP Webproxy A.02.10 ============================== HP_Webproxy.HPWEB-PX-CORE action: install PHSS_30649 or subsequent HP-UX B.11.04 HP Webproxy A.02.00 ============================== HP_Webproxy.HPWEB-PX-CORE action: install PHSS_30650 or subsequent END AFFECTED VERSIONS RESOLUTION: For B.11.04 HP has made the following patches available: PHSS_30639 Virtualvault 4.7 IWS update PHSS_30640 Virtualvault 4.7 OpenSSH update PHSS_30641 Virtualvault 4.7 OWS update PHSS_30642 Virtualvault 4.7 TGP update PHSS_30643 Virtualvault 4.6 IWS update PHSS_30644 Virtualvault 4.6 OpenSSH update PHSS_30645 Virtualvault 4.6 OWS update PHSS_30646 Virtualvault 4.6 TGP update PHSS_30647 Virtualvault 4.5 IWS Update PHSS_30648 Virtualvault 4.5 OWS update PHSS_30649 Webproxy server 2.1 update PHSS_30650 Webproxy server 2.0 update Note: Support ended for HP-UX Web Server Suite for HP-UX 11i v1.6 (11.22) after March 31, 2004. Starting from this release HP-UX Web Server Suite for HP-UX 11i v1.6 (11.22) is no longer available or supported. Users of HP-UX Web Server Suite on HP-UX 11i v1.6 are encouraged to update to HP-UX 11i v2 (11.23) and install the latest HP-UX Web Server Suite for HP-UX 11i v2. Please write to security-alert@hp.com for more information. For B.11.00, B.11.11, and B.11.23: Check for Apache Installation - ----------------------------- To determine if the Apache web server from HP is installed on your system, use Software Distributor's swlist command. All three versions products may co-exist on a single system. For example, the results of the command swlist -l product | grep -i apache hpuxwsAPACHE A.2.01 HP-UX Apache-based Web Server Stop Apache - ----------------------------- Before updating, make sure to stop any previous Apache binary. Otherwise, the previous binary will continue running, preventing the new one from starting, although the installation would be successful. After determining which Apache is installed, stop Apache with the following commands: for hpuxwsAPACHE: /opt/hpws/apache[32]/bin/apachectl stop Download and Install Apache - ----------------------------- - - Download Apache from Software Depot: < http://software.hp.com> - - Verify successful download by comparing the cksum with the value specified on the installation web page. - - Use SD to swinstall the depot. Installation of this new version of HP Apache over an existing HP Apache installation is supported, while installation over a non-HP Apache is NOT supported. Removing Apache Installation - ---------------------------- If you prefer to remove Apache from your system instead of installing a newer version to resolve the security problem, use both Software Distributor's "swremove" command and also "rm -rf" the home location as specified in the rc.config.d file "HOME" variables. %ls /etc/rc.config.d | grep apache hpapache2conf hpws_apache[32]conf MANUAL ACTIONS: Yes - NonUpdate Install the recommended product. BULLETIN REVISION HISTORY: Revision 1 - Corrected the affected versions in the Background section. Note: Several Apache security bulletins are being revised to correct the affected versions specification. Revision 2 - Added B.11.04. * The software product category that this Security Bulletin relates to is represented by the 5th and 6th characters of the Bulletin number: GN=General, MA=Management Agents, MI=Misc. 3rd party, MP=HP-MPE/iX, NS=HP NonStop Servers, OV=HP OpenVMS, PI=HP Printing & Imaging, ST=HP Storage, TU=HP Tru64 UNIX, TL=Trusted Linux, UX=HP-UX, VV=Virtual Vault SUPPORT: For further information, contact HP Services support channel. SUBSCRIBE: To initiate a subscription to receive future HP Security Bulletins via Email: http://h30046.www3.hp.com/driverAler...php?regioncode =NA&langcode=USENG&jumpid=in_SC-GEN__driverITRC&topiccode=ITRC On the web page: Driver and Support Alerts/Notifications Sign-up: Product Selection Under Step1: your products 1. Select product category: - a minimum of servers must be selected. 2. Select product family or search: - a minimum of one product must be selected. 3. Add a product: - a minimum of one product must be added. In Step 2: your operating system(s) - check ALL operating systems for which alerts are required. Complete the form 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. Note: In addition to the individual alerts/notifications for the selected operating systems/products, subscribers will automatically receive one copy of alerts for non-operating system categories (i.e., a subscriber who signs up for all six operating system alerts will only receive one copy of all the non-operating system alerts). HP-UX SPECIFIC SECURITY BULLETINS*: To review previously published Security Bulletins for HP-UX: http://itrc.hp.com/cki/bin/doc.pl/sc...curityBulletin Security Patch Check revision B.02.00 analyzes all HP-issued security bulletins to give you a subset of recommended actions that potentially affect your particular HP-UX system. For more information: <http://www.software.hp.com/cgi-bin/s...arser.cgi/cgi/ displayProductInfo.pl?productNumber=B6834AA> 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). 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 2004 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. -----BEGIN PGP SIGNATURE----- Version: PGP 8.0.2 iQA/AwUBQOxIb+AfOvwtKn1ZEQK1TgCeMStSR6N62R4y+CeGGZYIFb 0AE+MAoL5X fl5eUOvABb+vLM/QGJoDnJRk =uZvd -----END PGP SIGNATURE----- -- Yours truly, HP S/W Security Team WTEC Cupertino, California Return-Path: secure@cup.hp.com Reply-to: security-alert@hp.com |