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(HP Issues Fix for Tru64) Apache Web Server Socket Starvation Flaw May Let Remote Users Deny Service
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SecurityTracker Alert ID: 1010474 |
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SecurityTracker URL: http://securitytracker.com/id/1010474
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CVE Reference:
CAN-2004-0174
(Links to External Site)
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Date: Jun 11 2004
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Impact:
Denial of service via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 2.0.48 and prior versions; 1.3.29 and prior versions
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Description:
A vulnerability was reported in the Apache web server. A remote user may be able to cause denial of service conditions.
It is reported that a remote user can establish a short-lived connection to a rarely-accessed listening socket on the target server. This may cause the Apache child process to block new connections until another connection arrives on the rarely-accessed listening socket.
The report indicates that some versions of AIX, Solaris, and Tru64 UNIX are affected, but that FreeBSD and Linux systems are not affected.
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Impact:
A remote user may be able to cause the target server to deny connection requests.
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Solution:
HP has issued Early Release Patches (ERP) for HP Tru64 UNIX 5.1B PK2 and 5.1B PK3:
HP Tru64 UNIX 5.1B
PREREQUISITE: HP Tru64 UNIX with 5.1B with PK3 or PK2
ERP Kit Name: T64KIT0022562-V51BB24-ES-20040603.tar
Kit Readme Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64KIT0022562-V51BB24-ES-20040603
HP has also issued the following patches for various applications:
HP Internet Express for HP Tru64 UNIX (IX)
Bind:
Kit Name: T64V51AB-IX621-BIND920-SSRT4717.tar
Kit Readme Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64V51AB-IX621-BIND920-SSRT4717
SWS (Apache):
Kit Name: T64V51AB-IX621-HTTPD2047-APCH1328-SSRT4717.tar
Kit Readme Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64V51AB-IX621-HTTPD2047-APCH1328-SSRT4717
OpenLDAP:
Kit Name: T64V51AB-IX621-OLDAP2027-SSRT4717.tar
Kit Readme Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64V51AB-IX621-OLDAP2027-SSRT4717
Sendmail:
Kit Name: T64V51AB-IX621-SMTP81210-SSRT4717.tar
Kit Readme Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64V51AB-IX621-SMTP81210-SSRT4717
HP Insight Management Agents for Tru64 UNIX (IMA)
IMA Software Update 3.2.3 available at:
http://h30097.www3.hp.com/cma/patches.html
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Vendor URL: httpd.apache.org/ (Links to External Site)
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Cause:
Resource error
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Underlying OS:
UNIX (Tru64)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Fri, 11 Jun 2004 07:49:26 -0400
Subject: SSRT4717 rev.0 HP Tru64 UNIX SSL/TLS Potential Remote Denial of Service
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HP SECURITY BULLETIN
HPSBTU01049 REVISION: 0
SSRT4717 rev.0 HP Tru64 UNIX SSL/TLS Potential Remote Denial of Service (DoS)
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:
10 June 2004
POTENTIAL SECURITY IMPACT:
Remote denial of service (DoS)
SOURCE:
HEWLETT-PACKARD COMPANY
HP Software Security Response Team
REFERENCES:
CAN-2003-0020, CAN-2004-0113,CAN-2004-0174
VULNERABILITY SUMMARY:
A potential security vulnerability has been identified in the
HP Tru64 UNIX SSL (Secure Sockets Layer) library, which
is based on OpenSSL. The potential vulnerability may be
remotely exploitable, resulting in a denial of service (DoS).
SUPPORTED SOFTWARE VERSIONS*: ONLY impacted versions are listed.
The following supported product versions are affected.
HP Tru64 UNIX 5.1B PK3 (BL24)
HP Tru64 UNIX 5.1B PK2 (BL22)
The following Internet Express (IX) components from IX V6.2 or earlier:
Sendmail IX621-SMTP81210
Bind IX621-BIND920
OpenLDAP IX621-OLDAP2027
SWS (Apache) IX621-SMTP81210
Insight Management Agents (IMA) earlier than Software Update 3.2.3
BACKGROUND:
For a listing of all Tru64 UNIX security patch kits
please see the following web site:
http://h30097.www3.hp.com/unix/security-download.html
RESOLUTION:
Until the corrections are available in mainstream releases, HP is
providing patches that resolve the potential SSL vulnerability
described in this bulletin.
The corrections are scheduled to be available in the following
mainstream releases:
HP Tru64 UNIX V5.1B Patch Kit (PK) 5
HP Internet Express version 6.3
HP Tru64 Insight Management Agents 3.3 (CPQIM330)
Early Release Patches (ERP)
HP Tru64 UNIX
The same ERP kit applies to both 5.1B PK2 and 5.1B PK3.
HP Tru64 UNIX 5.1B
PREREQUISITE: HP Tru64 UNIX with 5.1B with PK3 or PK2
ERP Kit Name: T64KIT0022562-V51BB24-ES-20040603.tar
Kit Readme Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64KIT0022562-V51BB24-ES-20040603
Note: The corrections provided for SSRT3622 (HP Tru64 UNIX
TLS/SSL Potential Security Vulnerability - kit
T64KIT0021040-V51BB24-ES-20031212.tar) were based on
OpenSSL 0.9.7c.
The corrections for the potential vulnerability reported in this
bulletin are based on OpenSSL 0.9.7d, which replaces 0.9.7c.
HP Internet Express for HP Tru64 UNIX (IX)
Bind
Kit Name: T64V51AB-IX621-BIND920-SSRT4717.tar
Kit Readme Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64V51AB-IX621-BIND920-SSRT4717
SWS (Apache):
Kit Name: T64V51AB-IX621-HTTPD2047-APCH1328-SSRT4717.tar
Kit Readme Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64V51AB-IX621-HTTPD2047-APCH1328-SSRT4717
OpenLDAP:
Kit Name: T64V51AB-IX621-OLDAP2027-SSRT4717.tar
Kit Readme Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64V51AB-IX621-OLDAP2027-SSRT4717
Sendmail:
Kit Name: T64V51AB-IX621-SMTP81210-SSRT4717.tar
Kit Readme Location:
http://www.itrc.hp.com/service/patch/patchDetail.do?patchid=T64V51AB-IX621-SMTP81210-SSRT4717
HP Insight Management Agents for Tru64 UNIX (IMA)
IMA Software Update 3.2.3 available at:
http://h30097.www3.hp.com/cma/patches.html
Please write to security-alert@hp.com to request a PGP signed version of this bulletin.
BULLETIN REVISION HISTORY:
* 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/driverAlertProfile.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).
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."
©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.
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