-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 SUPPORT COMMUNICATION - SECURITY BULLETIN Document ID: c02997184 Version: 1 HPSBUX02702 SSRT100606 rev.1 - HP-UX Apache Web Server, Remote Denial of Service (DoS) NOTICE: The information in this Security Bulletin should be acted upon as soon as possible. Release Date: 2011-09-08 Last Updated: 2011-09-08 ------------------------------------------------------------------------------ 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 Apache Web Server. These vulnerability could be exploited remotely to create a Denial of Service (DoS). References: CVE-2011-3192, CVE-2011-0419 SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed. HP-UX B.11.23, B.11.31 running HP-UX Apache Web Server Suite v3.15 or earlier BACKGROUND CVSS 2.0 Base Metrics =========================================================== Reference Base Vector Base Score CVE-2011-3192 (AV:N/AC:L/Au:N/C:N/I:N/A:C) 7.8 CVE-2011-0419 (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 This bulletin will be revised when additional information becomes available. HP has provided the following software update to resolve this vulnerability. The update is available for download from the following location ftp://srt10606:P2xg=AD5@ftp.usa.hp.com or https://ftp.usa.hp.com/hprc/home with username srt10606 and password P2xg=AD5 HP-UX Web Server Suite v.3.18 containing Apache v2.2.15.08 HP-UX 11i Release Apache Depot name B.11.23 (32-bit) / Apache-CVE-2011-3192-Fix-IA-PA-32.depot B.11.23 (64-bit) / Apache-CVE-2011-3192-Fix-IA-PA-64.depot B.11.31 (32-bit) / Apache-CVE-2011-3192-Fix-IA-PA-32.depot B.11.31 (64-bit) / Apache-CVE-2011-3192-Fix-IA-PA-64.depot For customers not wanting to install this preliminary patch, we recommend that three work arounds be considered from the Apache Software Foundation. 1) Use SetEnvIf or mod_rewrite to detect a large number of ranges and then either ignore the Range: header or reject the request. 2) Limit the size of the request field to a few hundred bytes. 3) Use mod_headers to completely disallow the use of Range headers. Please refer to the Apache advisory for details. http://mail-archives.apache.org/mod_mbox/httpd-announce/201108.mbox/%3c20110826103531.998348F82@minotaur.apache.org%3e MANUAL ACTIONS: Yes - Update Install HP-UX Web Server Suite v3.18 or subsequent. PRODUCT SPECIFIC INFORMATION HP-UX Software Assistant: HP-UX Software Assistant is an enhanced application that replaces HP-UX Security Patch Check. It analyzes all Security Bulletins issued by HP and lists recommended actions that may apply to a specific HP-UX system. It can also download patches and create a depot automatically. For more information see https://www.hp.com/go/swa The following text is for use by the HP-UX Software Assistant. AFFECTED VERSIONS HP-UX Web Server Suite v3.18 HP-UX B.11.23 HP-UX B.11.31 ================== hpuxws22APCH32.APACHE hpuxws22APCH32.APACHE2 hpuxws22APCH32.AUTH_LDAP hpuxws22APCH32.AUTH_LDAP2 hpuxws22APCH32.MOD_JK hpuxws22APCH32.MOD_JK2 hpuxws22APCH32.MOD_PERL hpuxws22APCH32.MOD_PERL2 hpuxws22APCH32.PHP hpuxws22APCH32.PHP2 hpuxws22APCH32.WEBPROXY hpuxws22APCH32.WEBPROXY2 hpuxws22APACHE.APACHE hpuxws22APACHE.APACHE2 hpuxws22APACHE.AUTH_LDAP hpuxws22APACHE.AUTH_LDAP2 hpuxws22APACHE.MOD_JK hpuxws22APACHE.MOD_JK2 hpuxws22APACHE.MOD_PERL hpuxws22APACHE.MOD_PERL2 hpuxws22APACHE.PHP hpuxws22APACHE.PHP2 hpuxws22APACHE.WEBPROXY hpuxws22APACHE.WEBPROXY2 action: install revision B.2.2.15.08 or subsequent END AFFECTED VERSIONS HISTORY Version:1 (rev.1) - 8 September 2011 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 Subscribe: To initiate a subscription to receive future HP Security Bulletin alerts via Email: http://h41183.www4.hp.com/signup_alerts.php?jumpid=hpsc_secbulletins Security Bulletin List: A list of HP Security Bulletins, updated periodically, is contained in HP Security Notice HPSN-2011-001: https://h20566.www2.hp.com/portal/site/hpsc/public/kb/docDisplay/?docId=emr_na-c02964430 3C = 3COM 3P = 3rd Party Software GN = HP General Software HF = HP Hardware and Firmware MP = MPE/iX MU = Multi-Platform Software NS = NonStop Servers OV = OpenVMS PI = Printing and Imaging PV = ProCurve ST = Storage Software TU = Tru64 UNIX UX = HP-UX Copyright 2011 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: GnuPG v1.4.10 (GNU/Linux) iEYEARECAAYFAk5pAy8ACgkQ4B86/C0qfVnktwCg0oi5ITGARNCEk9jzOuHE9Ycj scIAmgOcEuEyUvhxgF48GBM3YWqVexIc =d0nc -----END PGP SIGNATURE-----